PCB布线有什么规则？
PCB布线原则
1.连线精简原则
连线要精简，尽可能短，尽量少拐弯，力求线条简单明了，特别是在高频回路中，当然为了达到阻抗匹配而需要进行特殊延长的线就例外了，例如蛇行走线等。
2.安全载流原则
铜线的宽度应以自己所能承载的电流为基础进行设计，铜线的载流能力取决于以下因素：线宽、线厚（铜铂厚度）、允许温升等，下表给出了铜导线的宽度和导线面积以及导电电流的关系（军品标准），可以根据这个基本的关系对导线宽度进行适当的考虑。
3.电磁抗干扰原则
电磁抗干扰原则涉及的知识点比较多，例如铜膜线的拐弯处应为圆角或斜角（因为高频时直角或者尖角的拐弯会影响电气性能）双面板两面的导线应互相垂直、斜交或者弯曲走线，尽量避免平行走线，减小寄生耦合等。
一)通常一个电子系统中有各种不同的地线，如数字地、逻辑地、系统地、机壳地等，地线的设计原则如下：
a.正确的单点和多点接地
在低频电路中，信号的工作频率小于1MHZ，它的布线和器件间的电感影响较小，而接地电路形成的环流对干扰影响较大，因而应采用一点接地。当信号工作频率大于10MHZ时，如果采用一点接地，其地线的长度不应超过波长的1/20，否则应采用多点接地法。
b.数字地与模拟地分开
若线路板上既有逻辑电路又有线性电路，应尽量使它们分开。一般数字电路的抗干扰能力比较强，例如TTL电路的噪声容限为0.4~0.6V，CMOS电路的噪声容限为电源电压的0.3~0.45倍，而模拟电路只要有很小的噪声就足以使其工作不正常，所以这两类电路应该分开布局布线。
c.接地线应尽量加粗
若接地线用很细的线条，则接地电位会随电流的变化而变化，使抗噪性能降低。因此应将地线加粗，使它能通过三倍于印制板上的允许电流。如有可能，接地线应在2~3mm以上。
d.接地线构成闭环路
只由数字电路组成的印制板，其接地电路布成环路大多能提高抗噪声能力。因为环形地线可以减小接地电阻，从而减小接地电位差。
二)配置退藕电容
PCB设计的常规做法之一是在印刷板的各个关键部位配置适当的退藕电容，退藕电容的一般配置原则是：
a.电源的输入端跨接10~100uf的电解电容器，如果印制电路板的位置允许，采用100uf以上的电解电容器抗干扰效果会更好。
b.原则上每个集成电路芯片都应布置一个0.01uf~`0.1uf的瓷片电容，如遇印制板空隙不够，可每4~8个芯片布置一个1~10uf的钽电容（最好不用电解电容，电解电容是两层薄膜卷起来的，这种卷起来的结构在高频时表现为电感，最好使用钽电容或聚碳酸酝电容）。
c.对于抗噪能力弱、关断时电源变化大的器件，如RAM、ROM存储器件，应在芯片的电源线和地线之间直接接入退藕电容。
d.电容引线不能太长，尤其是高频旁路电容不能有引线。
三)过孔设计
在高速PCB设计中，看似简单的过孔也往往会给电路的设计带来很大的负面效应，为了减小过孔的寄生效应带来的不利影响，在设计中可以尽量做到：
a.从成本和信号质量两方面来考虑，选择合理尺寸的过孔大小。例如对6- 10层的内存模块PCB设计来说，选用10/20mil（钻孔/焊盘）的过孔较好，对于一些高密度的小尺寸的板子，也可以尝试使用8/18Mil的过孔。在目前技术条件下，很难使用更小尺寸的过孔了（当孔的深度超过钻孔直径的6倍时，就无法保证孔壁能均匀镀铜）；对于电源或地线的过孔则可以考虑使用较大尺寸，以减小阻抗。
b.使用较薄的PCB板有利于减小过孔的两种寄生参数。
c.PCB板上的信号走线尽量不换层，即尽量不要使用不必要的过孔。
d.电源和地的管脚要就近打过孔，过孔和管脚之间的引线越短越好。
e.在信号换层的过孔附近放置一些接地的过孔，以便为信号提供最近的回路。甚至可以在PCB板上大量放置一些多余的接地过孔。
四)降低噪声与电磁干扰的一些经验
a.能用低速芯片就不用高速的，高速芯片用在关键地方。
b.可用串一个电阻的方法，降低控制电路上下沿跳变速率。
c.尽量为继电器等提供某种形式的阻尼，如RC设置电流阻尼。
d.使用满足系统要求的最低频率时钟。
e.时钟应尽量靠近到用该时钟的器件，石英晶体振荡器的外壳要接地。
f.用地线将时钟区圈起来，时钟线尽量短。
g.石英晶体下面以及对噪声敏感的器件下面不要走线。
h. 时钟、总线、片选信号要远离I/O线和接插件。
i.时钟线垂直于I/O线比平行于I/O线干扰小。
J.I/O驱动电路尽量靠近PCB板边，让其尽快离开PCB。对进入PCB的信号要加滤波，从高噪声区来的信号也要加滤波，同时用串终端电阻的办法，减小信号反射。
k.MCU无用端要接高，或接地，或定义成输出端，集成电路上该接电源、地的端都要接，不要悬空。
l.闲置不用的门电路输入端不要悬空，闲置不用的运放正输入端接地，负输入端接输出端。
m.印制板尽量使用45折线而不用90折线布线，以减小高频信号对外的发射与耦合。
n.印制板按频率和电流开关特性分区，噪声元件与非噪声元件呀距离再远一些。
o.单面板和双面板用单点接电源和单点接地、电源线、地线尽量粗。
p.模拟电压输入线、参考电压端要尽量远离数字电路信号线，特别是时钟。
q.对A/D类器件，数字部分与模拟部分不要交叉。
r.元件引脚尽量短，去藕电容引脚尽量短。
s.关键的线要尽量粗，并在两边加上保护地，高速线要短要直。
t.对噪声敏感的线不要与大电流，高速开关线并行。
u.弱信号电路，低频电路周围不要形成电流环路。
v.任何信号都不要形成环路，如不可避免，让环路区尽量小。
w.每个集成电路有一个去藕电容。每个电解电容边上都要加一个小的高频旁路电容。
x.用大容量的钽电容或聚酷电容而不用电解电容做电路充放电储能电容，使用管状电容时，外壳要接地。
y.对干扰十分敏感的信号线要设置包地，可以有效地抑制串扰。
z.信号在印刷板上传输，其延迟时间不应大于所有器件的标称延迟时间。
4.印制导线最大允许工作电流
公式: I=KT0.44A0.75
其中:
K为修正系数，一般覆铜线在内层时取0.024，在外层时取0.048；
T为最大温升，单位为℃;
A为覆铜线的截面积，单位为mil（不是mm，注意）；
I为允许的最大电流，单位是A。
5.环境效应原则
要注意所应用的环境，例如在一个振动或者其他容易使板子变形的环境中采用过细的铜膜导线很容易起皮拉断等。
6.安全工作原则
要保证安全工作，例如要保证两线最小间距要承受所加电压峰值，高压线应圆滑，不得有尖锐的倒角，否则容易造成板路击穿等。
7.组装方便、规范原则
走线设计要考虑组装是否方便，例如印制板上有大面积地线和电源线区时（面积超过500平方毫米），应局部开窗口以方便腐蚀等。
此外还要考虑组装规范设计，例如元件的焊接点用焊盘来表示，这些焊盘（包括过孔）均会自动不上阻焊油，但是如用填充块当表贴焊盘或用线段当金手指插头，而又不做特别处理，（在阻焊层画出无阻焊油的区域），阻焊油将掩盖这些焊盘和金手指，容易造成误解性错误；SMD器件的引脚与大面积覆铜连接时，要进行热隔离处理，一般是做一个Track到铜箔，以防止受热不均造成的应力集中而导致虚焊；PCB上如果有Φ12或方形12mm以上的过孔时，必须做一个孔盖，以防止焊锡流出等。
8.经济原则
遵循该原则要求设计者要对加工，组装的工艺有足够的认识和了解，例如5mil的线做腐蚀要比8mil难，所以价格要高，过孔越小越贵等
9.热效应原则
在印制板设计时可考虑用以下几种方法：均匀分布热负载、给零件装散热器，局部或全局强迫风冷。
从有利于散热的角度出发，印制板最好是直立安装，板与板的距离一般不应小于2cm，而且器件在印制板上的排列方式应遵循一定的规则：
同一印制板上的器件应尽可能按其发热量大小及散热程度分区排列，发热量小或耐热性差的器件（如小信号晶体管、小规模集成电路、电解电容等）放在冷却气流的最上（入口处），发热量大或耐热性好的器件（如功率晶体管、大规模集成电路等）放在冷却气流最下。
在水平方向上，大功率器件尽量靠近印刷板的边沿布置，以便缩短传热路径；在垂直方向上，大功率器件尽量靠近印刷板上方布置，以便减少这些器件在工作时对其他器件温度的影响。
对温度比较敏感的器件最好安置在温度最低的区域（如设备的底部），千万不要将它放在发热器件的正上方，多个器件最好是在水平面上交错布局。
设备内印制板的散热主要依靠空气流动，所以在设计时要研究空气流动的路径，合理配置器件或印制电路板。采用合理的器件排列方式，可以有效地降低印制电路的温升。
此外通过降额使用，做等温处理等方法也是热设计中经常使用的手段。
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PCB布线有什么规则？
PCB布线原则1.连线精简原则连线要精简，尽可能短，尽量少拐弯，力求线条简单明了，特别是在高频回路中，当然为了达到阻抗匹配而需要进行特殊延长的线就例外了，例如蛇行走线等。2.安全载流原则铜线的宽度应以自己所能承载的电流为基础进行设计，铜线的载流能力取决于以下因素：线宽、线厚（铜铂厚度）、允许温升等，下表给出了铜导线的宽度和导线面积以及导电电流的关系（军品标准），可以根据这个基本的关系对导线宽度进行适当的考虑。3.电磁抗干扰原则电磁抗干扰原则涉及的知识点比较多，例如铜膜线的拐弯处应为圆角或斜角（因为高频时直角或者尖角的拐弯会影响电气性能）双面板两面的导线应互相垂直、斜交或者弯曲走线，尽量避免平行走线，减小寄生耦合等。一)通常一个电子系统中有各种不同的地线，如数字地、逻辑地、系统地、机壳地等，地线的设计原则如下：a.正确的单点和多点接地在低频电路中，信号的工作频率小于1MHZ，它的布线和器件间的电感影响较小，而接地电路形成的环流对干扰影响较大，因而应采用一点接地。当信号工作频率大于10MHZ时，如果采用一点接地，其地线的长度不应超过波长的1/20，否则应采用多点接地法。b.数字地与模拟地分开若线路板上既有逻辑电路又有线性电路，应尽量使它们分开。一般数字电路的抗干扰能力比较强，例如TTL电路的噪声容限为0.4~0.6V，CMOS电路的噪声容限为电源电压的0.3~0.45倍，而模拟电路只要有很小的噪声就足以使其工作不正常，所以这两类电路应该分开布局布线。c.接地线应尽量加粗若接地线用很细的线条，则接地电位会随电流的变化而变化，使抗噪性能降低。因此应将地线加粗，使它能通过三倍于印制板上的允许电流。如有可能，接地线应在2~3mm以上。d.接地线构成闭环路只由数字电路组成的印制板，其接地电路布成环路大多能提高抗噪声能力。因为环形地线可以减小接地电阻，从而减小接地电位差。二)配置退藕电容PCB设计的常规做法之一是在印刷板的各个关键部位配置适当的退藕电容，退藕电容的一般配置原则是：a.电源的输入端跨接10~100uf的电解电容器，如果印制电路板的位置允许，采用100uf以上的电解电容器抗干扰效果会更好。b.原则上每个集成电路芯片都应布置一个0.01uf~`0.1uf的瓷片电容，如遇印制板空隙不够，可每4~8个芯片布置一个1~10uf的钽电容（最好不用电解电容，电解电容是两层薄膜卷起来的，这种卷起来的结构在高频时表现为电感，最好使用钽电容或聚碳酸酝电容）。c.对于抗噪能力弱、关断时电源变化大的器件，如RAM、ROM存储器件，应在芯片的电源线和地线之间直接接入退藕电容。d.电容引线不能太长，尤其是高频旁路电容不能有引线。三)过孔设计在高速PCB设计中，看似简单的过孔也往往会给电路的设计带来很大的负面效应，为了减小过孔的寄生效应带来的不利影响，在设计中可以尽量做到：a.从成本和信号质量两方面来考虑，选择合理尺寸的过孔大小。例如对6-10层的内存模块PCB设计来说，选用10/20mil（钻孔/焊盘）的过孔较好，对于一些高密度的小尺寸的板子，也可以尝试使用8/18Mil的过孔。在目前技术条件下，很难使用更小尺寸的过孔了（当孔的深度超过钻孔直径的6倍时，就无法保证孔壁能均匀镀铜）；对于电源或地线的过孔则可以考虑使用较大尺寸，以减小阻抗。b.使用较薄的PCB板有利于减小过孔的两种寄生参数。c.PCB板上的信号走线尽量不换层，即尽量不要使用不必要的过孔。d.电源和地的管脚要就近打过孔，过孔和管脚之间的引线越短越好。e.在信号换层的过孔附近放置一些接地的过孔，以便为信号提供最近的回路。甚至可以在PCB板上大量放置一些多余的接地过孔。四)降低噪声与电磁干扰的一些经验a.能用低速芯片就不用高速的，高速芯片用在关键地方。b.可用串一个电阻的方法，降低控制电路上下沿跳变速率。c.尽量为继电器等提供某种形式的阻尼，如RC设置电流阻尼。d.使用满足系统要求的最低频率时钟。e.时钟应尽量靠近到用该时钟的器件，石英晶体振荡器的外壳要接地。f.用地线将时钟区圈起来，时钟线尽量短。g.石英晶体下面以及对噪声敏感的器件下面不要走线。h.时钟、总线、片选信号要远离I/O线和接插件。i.时钟线垂直于I/O线比平行于I/O线干扰小。J.I/O驱动电路尽量靠近PCB板边，让其尽快离开PCB。对进入PCB的信号要加滤波，从高噪声区来的信号也要加滤波，同时用串终端电阻的办法，减小信号反射。k.MCU无用端要接高，或接地，或定义成输出端，集成电路上该接电源、地的端都要接，不要悬空。l.闲置不用的门电路输入端不要悬空，闲置不用的运放正输入端接地，负输入端接输出端。m.印制板尽量使用45折线而不用90折线布线，以减小高频信号对外的发射与耦合。n.印制板按频率和电流开关特性分区，噪声元件与非噪声元件呀距离再远一些。o.单面板和双面板用单点接电源和单点接地、电源线、地线尽量粗。p.模拟电压输入线、参考电压端要尽量远离数字电路信号线，特别是时钟。q.对A/D类器件，数字部分与模拟部分不要交叉。r.元件引脚尽量短，去藕电容引脚尽量短。s.关键的线要尽量粗，并在两边加上保护地，高速线要短要直。t.对噪声敏感的线不要与大电流，高速开关线并行。u.弱信号电路，低频电路周围不要形成电流环路。v.任何信号都不要形成环路，如不可避免，让环路区尽量小。w.每个集成电路有一个去藕电容。每个电解电容边上都要加一个小的高频旁路电容。x.用大容量的钽电容或聚酷电容而不用电解电容做电路充放电储能电容，使用管状电容时，外壳要接地。y.对干扰十分敏感的信号线要设置包地，可以有效地抑制串扰。z.信号在印刷板上传输，其延迟时间不应大于所有器件的标称延迟时间。4.印制导线最大允许工作电流公式:I=KT0.44A0.75其中:K为修正系数，一般覆铜线在内层时取0.024，在外层时取0.048；T为最大温升，单位为℃;A为覆铜线的截面积，单位为mil（不是mm，注意）；I为允许的最大电流，单位是A。5.环境效应原则要注意所应用的环境，例如在一个振动或者其他容易使板子变形的环境中采用过细的铜膜导线很容易起皮拉断等。6.安全工作原则要保证安全工作，例如要保证两线最小间距要承受所加电压峰值，高压线应圆滑，不得有尖锐的倒角，否则容易造成板路击穿等。7.组装方便、规范原则走线设计要考虑组装是否方便，例如印制板上有大面积地线和电源线区时（面积超过500平方毫米），应局部开窗口以方便腐蚀等。此外还要考虑组装规范设计，例如元件的焊接点用焊盘来表示，这些焊盘（包括过孔）均会自动不上阻焊油，但是如用填充块当表贴焊盘或用线段当金手指插头，而又不做特别处理，（在阻焊层画出无阻焊油的区域），阻焊油将掩盖这些焊盘和金手指，容易造成误解性错误；SMD器件的引脚与大面积覆铜连接时，要进行热隔离处理，一般是做一个Track到铜箔，以防止受热不均造成的应力集中而导致虚焊；PCB上如果有Φ12或方形12mm以上的过孔时，必须做一个孔盖，以防止焊锡流出等。8.经济原则遵循该原则要求设计者要对加工，组装的工艺有足够的认识和了解，例如5mil的线做腐蚀要比8mil难，所以价格要高，过孔越小越贵等9.热效应原则在印制板设计时可考虑用以下几种方法：均匀分布热负载、给零件装散热器，局部或全局强迫风冷。从有利于散热的角度出发，印制板最好是直立安装，板与板的距离一般不应小于2cm，而且器件在印制板上的排列方式应遵循一定的规则：同一印制板上的器件应尽可能按其发热量大小及散热程度分区排列，发热量小或耐热性差的器件（如小信号晶体管、小规模集成电路、电解电容等）放在冷却气流的最上（入口处），发热量大或耐热性好的器件（如功率晶体管、大规模集成电路等）放在冷却气流最下。在水平方向上，大功率器件尽量靠近印刷板的边沿布置，以便缩短传热路径；在垂直方向上，大功率器件尽量靠近印刷板上方布置，以便减少这些器件在工作时对其他器件温度的影响。对温度比较敏感的器件最好安置在温度最低的区域（如设备的底部），千万不要将它放在发热器件的正上方，多个器件最好是在水平面上交错布局。设备内印制板的散热主要依靠空气流动，所以在设计时要研究空气流动的路径，合理配置器件或印制电路板。采用合理的器件排列方式，可以有效地降低印制电路的温升。此外通过降额使用，做等温处理等方法也是热设计中经常使用的手段。
[create_time]2022-12-08 17:14:24[/create_time]2022-12-23 17:14:24[finished_time]1[reply_count]0[alue_good]惠企百科[uname]https://pic.rmb.bdstatic.com/bjh/user/343825d09bee196abf9cec8955c23e80.jpeg[avatar]百度认证:北京惠企网络技术有限公司官方账号[slogan]惠企百科网是一家科普类综合网站，关注热门中文知识,集聚互联网精华中文知识,本着自由开放、分享价值的基本原则,向广大网友提供专业的中文知识平台。[intro]37[view_count]
有关春节趣事的英语作文
【 #英语资源# 导语】春节是我国非常重要的一个传统节日，许多在他乡工作生活的人们都会在这个节日赶往老家过年。张灯结彩，家人团聚，走亲访友，热闹非凡。以下是 为大家精心整理的内容，欢迎大家阅读。 1.有关春节趣事的英语作文 Foreign children, in a few days, it will be the biggest festival of our Chinese people - the Spring Festival. Do you want to come to China and enjoy the excitement and joy of the Spring Festival? First of all, let me introduce to you one by one what we usually do during the Spring Festival. Before the Chinese new year, we will ask our parents to take some money for us to go to the street with our good friends and buy some things we want to buy. We will also go to the street with our parents to buy new clothes. Don't do anything at home. Enjoy playing in the dark with your friends. On the day of the Chinese new year, we will post couplets and door gods, and then have a reunion dinner with our grandparents, uncles and aunts. It's also important to eat family reunion dinner. Generally speaking, those with two or three sons start eating in turn at their sons' homes on New Year's Eve. My grandfather has three sons. He usually eats at my uncle's house in the morning and at my house at noon. Eat at my uncle's house in the evening. Before dinner, we will set off a long string of loud firecrackers before we start eating. During the Chinese new year, everyone's face is full of smiles. On the first day of the lunar new year, we began to pay New Year's greetings from our host to the West. New Year greetings can also save some lucky money for us. Dad will pack the apples for guests in the morning and wait for mom to come out. And our children go to their homes to pay New Year's greetings. First, I wish my grandparents a happy new year and say some auspicious words to them. For example, I wish my grandparents good health and all the best in the new year. Then, Grandpa and grandma will say that they are really good and start taking lucky money. From big to small, and then to uncle's house to pay New Year's greetings. You can not only save lucky money, but also eat snacks while playing. On the second day of the first month, we began to visit relatives and friends. The first is to go to grandma's house to pay New Year's greetings. Then visit again. Generally speaking, this kind of new year's visit to relatives and friends lasts until the 15th day of the first month, that is, after the Lantern Festival, the first month is over. Foreign children, after listening to so much, are you moved? If you want to come to China for the Spring Festival, do it quickly! You will be most warmly welcomed and received by us, and you will have a good time! Foreign friends, come on! We are always waiting! 2.有关春节趣事的英语作文 The Spring Festival is coming. The streets are full of excitement and joy. There is a strong smell of the new year everywhere. Walking in the street, there are red couplets everywhere, red lanterns and Chinese knots, firecrackers sellers and all kinds of food... It's only 23. It's so lively. Mother bought all the new year goods, prepared all kinds of dishes, and began to prepare to paste couplets. Father put paste on the back and paste it. Paste the word "Fu" upside down. I asked my father why? Dad said it to represent the meaning of happiness. We can't help but hang two Chinese cows in the window. It's all red. The whole world is red. In the busy preparation, I ushered in the new year's Eve that I have been looking forward to for a long time. On this day, there are fewer pedestrians in the street. They all make dumplings at home. The sound of firecrackers in the street is deafening? Continuously, the red left in the street is the red paper of firecrackers. Moreover, the old year has passed in the sound of firecrackers. At 5 p.m., my father and I came downstairs with firecrackers. My father lit firecrackers and watched. I hid in the corridor and covered my ears. In the evening, a rich meal has been waiting for us on the table. The essential meals are: rice cakes, dumplings and fish. After dinner, our whole family crowded together to watch the party. The intoxicating beautiful dance posture, as well as the sketches, crosstalk and mysterious magic that made people laugh, gave people endless aftertaste. I didn't sleep with my parents' lucky money until more than 12 o'clock in the evening. On the first day of the new year, I woke up at 8 a.m. and went to my grandparents' house to pay New Year's greetings with my parents. As soon as I saw my grandparents, I said loudly, "I wish my grandparents good health and a longer life than Nanshan. Then I bowed to my grandparents. My grandparents happily stuffed a big red envelope into my hand. My parents also took out their mobile phones and sent text messages to their friends to pay New Year's greetings. The Lantern Festival is also coming. In the evening, I eat dumplings. My parents and I drove to the oil field to see the colored lights. The colorful lights looked particularly beautiful against the night sky. After watching the colored lights, we looked at fireworks. Colorful fireworks shot into the night sky one after another, which made people dizzy. Red, yellow and green... All kinds of fireworks became a landscape. After a memorable year, this year makes my winter vacation colorful! 3.有关春节趣事的英语作文 As soon as I entered the door, I said first: "Grandpa Qin and grandma Tan, I wish you a happy new year. I wish you good health!" Grandpa Qin quickly brought bananas and oranges. After we sat down, Grandpa Qin asked me how old I was and what grade I was in while letting us eat fruit. He also said I was tall. I looked at Grandpa Qin: Grandpa Qin is nearly 70 years old this year. He is strong and has a loud voice. His hair is silver white and his eyebrows are silver white. This is the legendary Shoumei! Grandpa Qin must live a long life! While grandpa Qin was chatting with his father and mother, I picked up oranges and ate them while visiting their house. Grandpa Qin's little granddaughter returned to grandma's house. I can't play with her every year. Grandpa Qin's new home, two bedrooms and study are sunny, and the living room is more than 40 square meters. I can have fun. Finally, my father and mother and I are going home. When we go out, we say, "Grandpa Qin and grandma Tan, we will pay New Year's greetings to you next year!" 4.有关春节趣事的英语作文 Today, it was drizzling. Grandpa and I went to our hometown to pay New Year's greetings. When I arrived at my hometown, I ran to my aunt's house and said, "happy new year, congratulations on getting rich." The aunt said, "it's so good. I'll be as tall as my mother in two years." My heart is full of joy Happy. After a while, many children came to play with me. I was happy to see them, because I could only meet them once or twice a year. Mom and dad said you go play. Don't be too crazy. Try not to dirty your clothes on rainy days. We jumped up happily and said in one voice, "Oh, I see." Then my neighbor's children and I went to your house and his house. Their parents were very polite. They gave us food and play. Another aunt sent me a spectacle dog toy brought back from the production. It was loaded with batteries and could sing and dance. It was fun. I liked it very much. After a while, we can have dinner. The adults on the dinner table talk and laugh, and see that their faces are filled with smiles. We also took a lot of lucky money when we came back after dinner. It was so happy and good for the new year. 5.有关春节趣事的英语作文 It's the Spring Festival. It's time for families to be reunited. I put on the new clothes and shoes my mother bought. Mother said, "after breakfast, let's go to grandma's house to pay New Year's greetings." When I heard about going to grandma's house, I was as excited as an ant on a hot pot. On the way to grandma's house, I saw many people with gifts, including driving, cycling and walking. Everyone was smiling. After a while, we arrived at Grandma's house. When I saw grandma, I hurried over and said, "grandma, happy new year. I wish you a lucky year of the pig." Grandma laughed with joy, touched my head and said, "you are so sensible and polite. I wish you progress in your study and become more beautiful as you grow." Then I took out a red envelope from my pocket and gave it to me. I quickly took it with both hands and said happily, "thank you, grandma." Then I went to play with my sister and sister. I also brought a kite. We flew the kite together and almost put the kite on the telegraph pole. Until noon, we went home happily after dinner. Ah, it's nice to celebrate the new year. I like the spring festival very much.
[create_time]2023-01-19 09:27:08[/create_time]2023-01-28 06:44:55[finished_time]1[reply_count]0[alue_good]刘老师的每日回答[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.b458b647.SlNcgANPl8GoUzHZklQWmg.jpg?time=6951&tieba_portrait_time=6951[avatar]TA获得超过293个赞[slogan]这个人很懒，什么都没留下![intro]3[view_count]春节趣事英语作文？
春节是个喜庆的节日，那么都有什么趣事儿发生在春节呢?下面是我给大家整理的关于春节的趣事的英语作文，供大家参阅!
春节趣事的英语作文***一***
This year I have a happy spring featival with my family.
On New Year's Eve,all the family people get together to have a big dinner in the resturant.During the dinner we have a *** all talk and play some games.We say some good hope to each other.For example,keep good healthe,try your best to do everything,have a good mood in this year,happy everyday and so on.
Thanks to this spring festival,it make our family people get toghther.We enjoy ourselves and in the new year we all fighting.
春节趣事的英语作文***二***
After the New Year’s Eve dinner with my family, we began to sit down in front of the TV, and enjoyed 2015 CCTV Spring Festival gala. At about ten o’clock, the black sky was lightened by lots of fireworks with colorful light and happy sound. We stop watching the CCTV 2015 CCTV Spring Festival gala, and began to climb up the balcony to see the beautiful fireworks view, and my father took some fireworks up, and we also began to play fireworks. What a beautiful night. Later, my cell phone was ringing all the time. I received lots of short messages from my friends and clas *** ates. They all blessed me happy New Year. I gave same bless to them by sending back the happy words. At almost 12 pm, I made a wish in New Year, and began to sleep. When I woke up in the first day of New Year, my father and mother gave two red packets to me, and blessed me that everything will go well on me. I thanked them, and accepted the red packets happily. I have been waiting for the day that I can get lots of red packets. This is my happiest time of the year. After lunch, both my family went to the park, the streets, and the shops or supermarkets. We took many photos in the park, and bought many things in the shops or supermarket. I met my uncles and aunts, they all blessed us happy New Year and gave me red packets. I was too happy to count how many red packets I got. The following days, we visited my grandparents and some of relatives. We happily talk with them, and brought some presents to them, and also received some New Year presents. This was how did I spend my Spring Festival; I really enjoyed myself in Spring Festival.
春节趣事的英语作文***三***
This year, the imposing and vigorous figure-wai of the Chinese New Year Eve, I went to the countryside vacation, fortunate to have witnessed an exciting tug of war game, and add more of that kind of excitement for the New Year fresh.
Today we returned home under the family home, put on the big bag, packet on the "mighty" the village, and first entered the village, we heard, we are in a tug of war to be held this year, I was one, there is a kind of " there are good movies watched "feeling, joy on the heart. My hand resting on the package to go home after they went to see the details of the village mittee, the original is held in the village and several other villages in a tug of war petition, all six men each village, petitions scheduled in the afternoon 3: 00, the winner also rewards it. "It's interesting" I do not know how the front of a bulletin board I have said so.
春节趣事的英语作文***四***
I like the Chinese new year better than any other festival. This is a time especially for rest and joy. I need not study. I wear good clothes and eat good food. I have a good time from morning till night. I am as happy as a king.
In spring festival, it is a tradition for Chinese people to have a big dinner, all the family members get together, people called it the reunion dinner. This is the most important thing for my family, no matter how far and how busy, all the members will e home and eat the dinner. The reunion dinner gives us a chance to municate and understand each other.
[create_time]2022-11-08 20:52:55[/create_time]2022-11-22 11:13:39[finished_time]1[reply_count]0[alue_good]远景教育17[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.449f9e5c.kcbVHe4AoW5N6vK2Xg2vpw.jpg?time=4747&tieba_portrait_time=4747[avatar]TA获得超过4291个赞[slogan]这个人很懒，什么都没留下![intro]37[view_count]
蔬菜都有哪些？用英语说，12种以上
一、葱、姜、蒜
1. 青葱 spring onion
2. 洋葱 onion
3. 蒜 garlic（蒜苗 garlic sprout）
4. 姜 ginger
二、青菜类蔬菜
5. 青菜 greens; green vegetables
6. 菠菜 spinach
7. 甘蓝菜、卷心菜 cabbage
8. 西芹菜、芹菜 celery
9. 韭菜 garlic chives
10. 芫荽、香菜 coriander
11. 莴苣 lettuce
12. 绿花椰菜（球花甘蓝） broccoli
13. 白花椰菜 cauliflower
三、淀粉类蔬菜
14. 马铃薯 potato/spud
15. 地瓜、番薯 sweet potato
16. 玉米 sweet corn; corn
17. 山药 yam
18. 芋头 taro
19. 莲藕 lotus root（莲花 lotus）
四、萝卜类蔬菜
20. 萝卜 radish
21. 胡萝卜 carrot
五、瓜类蔬菜
22. 黄瓜 cucumber
23. 栉瓜 courgette/zucchini/summer squash
24. 南瓜 pumpkin
六、豆类蔬菜
25. 豆 bean（豆芽 bean sprout；豆茎 beanstalk）
26. 豌豆 pea
27. 大豆、黄豆 soybean（豆浆 soybean milk）
七、椒类蔬菜
28. 辣椒 hot pepper/chili（胡椒、辣椒 pepper）
29. 青椒 green pepper
30. 甜椒 sweet pepper
八、其他蔬菜
31. 西红柿 tomato
32. 蘑菇 mushroom
33. 茄子 eggplant
34. 芦笋 asparagus
35. 竹笋 bamboo sprout; bamboo shoot（竹、竹子 bamboo）
九、蔬菜烹饪前的加工处理动作词汇
切、割、剪、削、砍 cut
薄片、切片、片 slice
剁碎 mince
削皮 pare/peel
剥……的皮 skin
剥 strip
切丁 dice
磨碎 grind
[create_time]2021-05-17 13:25:16[/create_time]2021-05-31 20:33:43[finished_time]2[reply_count]1[alue_good]babycentury[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.eb33c5d0.HVQvNj8VW5vrkPMTSCKBiQ.jpg?time=3055&tieba_portrait_time=3055[avatar]说的都是干货，快来关注[slogan]诸恶莫作，众善奉行。自净其意，是诸佛教。[intro]1067[view_count]
蔬菜都有哪些?用英语说,12种以上
tomato 番茄,西红柿
asparagus 芦笋
cucumber 黄瓜
aubergine,eggplant 茄子
bean 菜豆
beet,beetroot 甜菜
pepper 胡椒
pimiento 甜椒
potato 马铃薯
carrot 胡萝卜
cauliflower 菜花,花椰菜
pumpkin 西葫芦
broad bean 蚕豆
cabbage 圆白菜,卷心菜
chilli 辣椒
garlic 蒜
chive 葱
fennel 茴香
cos lettuce 莴苣
marrow 嫩葫芦
melon 香瓜,甜瓜
mushroom,celery 芹菜
onion 韭
leek 韭菜
radish 萝卜
tarragon 狭叶青蒿
thyme 百里香
mushroom 蘑菇
artichoke 洋蓟
broccoli,brocoli 硬花甘蓝
Brussels sprouts 芽甘蓝
caper 刺山柑,老鼠瓜
cardoon 刺菜蓟
chervil 雪维菜,细叶芹
chick-pea 鹰嘴豆
chicory 苣荬菜
cress 水田芥
cumin,cummin 孜然芹,枯茗
dandelion 蒲公英
French bean 法国菜豆
gherkin 嫩黄瓜
horseradish 辣根
Jerusalem artichoke 洋姜,鬼子姜
kale 无头甘蓝
kohlrabi 甘蓝
laurel 月桂
lentil 兵豆
lettuce 莴苣
lupin 羽扇豆 (美作:lupine)
parsley 欧芹
parsnip 欧防风
pea 豌豆
rhubarb 大黄
salsify 婆罗门参
sorrel 掌叶大黄
truffle 块菌
turnip 芜菁
watercress 豆瓣菜
[create_time]2022-08-15 07:44:21[/create_time]2022-08-26 15:41:04[finished_time]1[reply_count]0[alue_good]四季教育17[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.5b2b48dd.rSsU-W71rAg5Mk6TWrJl-Q.jpg?time=4741&tieba_portrait_time=4741[avatar]TA获得超过4647个赞[slogan]这个人很懒，什么都没留下![intro]5[view_count]
蔬菜的英语单词有哪些?
各类水果蔬菜英文名称翻译
一、蔬菜
string bean 四季豆
pea 豌豆
green soy bean 毛豆
soybean sprout 黄豆芽
mung bean sprout 绿豆芽
bean sprout 豆芽
kale 甘蓝菜
cabbage 包心菜; 大白菜
broccoli 花椰菜
mater convolvulus 空心菜
dried lily flower 金针菜
mustard leaf 芥菜
celery 芹菜
tarragon 蒿菜
beetroot 甜菜根
lettuce 生菜
spinach 菠菜
leek 韭菜
caraway 香菜
preserved szechuan pickle 榨菜
salted vegetable 雪里红
lettuce 莴苣
asparagus 芦荟
bamboo shoot 竹笋
dried bamboo shoot 笋干
carrot 胡萝卜
water chestnut 荸荠
long crooked squash 菜瓜
loofah 丝瓜
pumpkin 南瓜
bitter gourd 苦瓜
cucumber 黄瓜
white gourd 冬瓜
gherkin 小黄瓜
yam 山芋
taro 芋头
champignon 香菇
needle mushroom 金针菇
dried mushroom 冬菇
tomato 番茄
eggplant 茄子
potato, spud 马铃薯
lotus root 莲藕
agaric 木耳
white fungus 百木耳
ginger 生姜
garlic 大蒜
garlic bulb 蒜头
green onion 葱
onion 洋葱
scallion, leek 青葱
wheat gluten 面筋
miso 味噌
二、水果
pineapple 凤梨
watermelon 西瓜
papaya 木瓜
betelnut 槟榔
chestnut 栗子
coconut 椰子
ponkan 碰柑
tangerine 橘子
mandarin orange 橘
sugar-cane 甘蔗
muskmelon 香瓜
shaddock 柚子，文旦
juice peach 水蜜桃
pear 梨子
peach 桃子
carambola 杨桃
cherry 樱桃
persimmon 柿子
apple 苹果
mango 芒果
fig 无花果
water caltrop 菱角
almond 杏仁
plum 李子
honey-dew melon 哈密瓜
loquat 枇杷
olive 橄榄
rambutan 红毛丹
durian 榴
strawberry 草莓
grape 葡萄
grapefruit 葡萄柚
lichee 荔枝
longan 龙眼
wax-apple 莲雾
guava 番石榴
banana 香蕉
[create_time]2020-04-20 17:06:52[/create_time]2020-05-04 17:06:52[finished_time]3[reply_count]37[alue_good]百度网友9fca227[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.3112b662.uafRlVtXhOdiWrFzp_c5Vw.jpg?time=3100&tieba_portrait_time=3100[avatar]TA获得超过806个赞[slogan]这个人很懒，什么都没留下![intro]6765[view_count]
常用的蔬菜英语单词
tomato 番茄,西红柿
asparagus 芦笋
cucumber 黄瓜
aubergine, eggplant 茄子
bean 菜豆
beet, beetroot 甜菜
pepper 胡椒
pimiento 甜椒
potato 马铃薯
carrot 胡萝卜
cauliflower 菜花,花椰菜
pumpkin 西葫芦
broad bean 蚕豆
cabbage 圆白菜,卷心菜
chilli 辣椒
garlic 蒜
chive 葱
fennel 茴香
cos lettuce 莴苣
marrow 嫩葫芦
melon 香瓜,甜瓜 celery 芹菜
onion 洋葱leek 韭菜
radish 萝卜
tarragon 狭叶青蒿
thyme 百里香
mushroom 蘑菇
artichoke 洋蓟
broccoli, brocoli 硬花甘蓝
Brussels sprouts 芽甘蓝
caper 刺山柑,老鼠瓜
cardoon 刺菜蓟
chervil 雪维菜,细叶芹
chick-pea 鹰嘴豆
chicory 苣荬菜
cress 水田芥
cumin, cummin 孜然芹,枯茗
dandelion 蒲公英
French bean 法国菜豆
gherkin 嫩黄瓜
horseradish 辣根
Jerusalem artichoke 洋姜,鬼子姜
kale 无头甘蓝
kohlrabi 甘蓝
laurel 月桂
lentil 兵豆
lettuce 莴苣
lupin 羽扇豆 (美作:lupine)
parsley 欧芹
parsnip 欧防风
pea 豌豆
rhubarb 大黄
salsify 婆罗门参
sorrel 掌叶大黄
truffle 块菌
turnip 芜菁
watercress 豆瓣菜
[create_time]2022-08-03 00:04:27[/create_time]2022-08-16 17:33:24[finished_time]1[reply_count]0[alue_good]四季教育17[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.5b2b48dd.rSsU-W71rAg5Mk6TWrJl-Q.jpg?time=4741&tieba_portrait_time=4741[avatar]TA获得超过4647个赞[slogan]这个人很懒，什么都没留下![intro]5[view_count]
QQ仙侠传什么是精灵呢自动进组啊，专门术语还有哪些啊
这不是什么专业术语 呵呵 精灵自动进组 我给你解释一下 精灵就是说的游戏里精灵那个状态 每支队伍里有三个开启精灵的就会有个加成的状态 自动进组的意思是说队长开启“自动同意组队请求”当有人申请的时候 不用队长在点开手动同意了 方便快捷 就这么简单
[create_time]2013-04-04 13:44:01[/create_time]2013-04-04 16:32:58[finished_time]2[reply_count]1[alue_good]清风明月自在欢[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.e8f3f002.7O7suY8qrqyqBzunAnnUig.jpg?time=3827&tieba_portrait_time=3827[avatar]TA获得超过308个赞[slogan]这个人很懒，什么都没留下![intro]661[view_count]
魔兽争霸3冰封王座兽族快捷键（要详细的）
兽族-ORC 全 快捷键 (包括建筑
建筑(B)
大厅(H)苦工(P)
掠夺(G)
兵营(R)
兽族步兵(G)
巨魔猎头者(T
狂战士(B)(成为巨魔狂暴战士后)
粉碎者(D)
研究狂暴力量(B)
研究巨魔再生(R)
升级狂战士(E)
燃烧之油(N)
战争磨坊(M)|--钢铁近战武器(M)
钢铁远程武器(R)
钢铁护甲(A)
尖刺障碍(S)
加强型防御(D)
了望塔(W)
兽族地洞(O)战斗位置(B)
风暴祭坛(A)
剑圣(B)
疾步风(W)
镜像(R)
致命一击(E)
剑刃风暴(C)
先知(F)
闪电链(C)
远视(F)
野兽幽魂(T)
地震(E)
牛头人酋长(T)
震荡波(W)
战争践踏(T)
耐久光环(E)
重生(R)
暗影猎手(H)
医疗波(E)
妖术(X)
毒蛇守卫(W)
巫毒(V)
灵魂归宿(S)
萨满祭司(S)
净化(G)
闪电护盾(L)
嗜血术(B)
巨魔巫医(W)
岗哨守卫(W)
静止陷阱(T)
治疗守卫(E)
灵魂行者(T)
灵魂锁链(R)
消魔(D)
远古神灵(C)
灵肉/虚无(F)
萨满祭司专家/大师级训练(M)
巫医专家/大师级训练(D)
灵魂行者祭司专家/大师级训练(R)
兽栏(W)
掠夺者(R)
诱捕(E)
风骑士(W)
科多兽(K)
吞噬(D)
巨魔蝙蝠骑士(B)
不稳定化合物(C)
诱捕(N)
研究浸毒武器(E)
研究液体炸弹(L)
升级战鼓(D)
牛头人图腾(T)牛头人(T)
研究粉碎(P)
巫毒商店(V)医疗剂(H)
小净化药水(C)
速度卷轴(S)
闪电之球(L)
小型的大厅(G)
应该就这个样子了吧 呵呵
最后祝大家游戏愉快~
好运~ ^_^
[create_time]2017-09-25 22:00:39[/create_time]2007-11-03 18:25:50[finished_time]7[reply_count]152[alue_good]生色锦城春3[uname]https://himg.bdimg.com/sys/portrait/item/wise.1.835d58c9.cEx_knpEkcRpoDTPLE5CDA.jpg?time=2827&tieba_portrait_time=2827[avatar]TA获得超过153个赞[slogan]这个人很懒，什么都没留下![intro]12150[view_count]
求魔兽争霸3冰封王座兽族的所有快捷键
Alt-F4 or Alt-q -退出Warcraft III.
Alt-O -打开选项菜单
Alt-h -打开帮助菜单
Alt-s -打开存盘菜单
Alt-l -打开读取存档菜单
F6 -快速保存游戏
F10 -打开/关闭主菜单
Ctrl-s -开/关声音
Ctrl-m -开/关音乐
Enter -打开默认的谈话窗口
Shift-Enter -打开对所有游戏里头的人的谈话窗口
Ctrl-Enter -打开对盟友的谈话窗口
Print Screen -将屏幕截图为.TGA格式的文件并保存在你的WC3安装目
录下的SCREENSHOTS目录.
Esc -返回上个菜单
Insert -将镜头向左旋转
Delete -将镜头向右旋转
鼠标轮:上滚-放大镜头
鼠标轮:下滚-缩小镜头
按下鼠标轮: -按住可以移动鼠标来在地图上移动
方向键-可以在地图上移动
鼠标 左键单击-选定单位,建筑,按下命令的按钮,指定作用目标.
·选定屏幕上的单位和建筑.
·激活单位的指令按钮.
·确认一个命令的目标,建筑或者宝物,技能的放置地点.
·在英雄的物品栏中使用一个宝物.
·丢弃或者交给其他英雄宝物.
·点击小地图可以将屏幕移动到点击处.
·如果你的部队是混编的,单击其中的一个单位可以激活那组单位以便
使用特殊技能.
右键单击-在目标的单位/建筑,地面,或者小地图上进行智能的活动.
·地面-移动单位到目的地,即使路上有敌人攻击也不还击.
·敌人单位/建筑-攻击目标.
·自己的单位或者友军-跟随目标行动.
·树木/金矿-移动单位到目的地(如果是收集资源单位,则是采集此项资
源).
·地上的宝物-英雄走过去捡起宝物.
·在英雄物品栏里头的宝物-捡起宝物.
·正在确定法术等的目标的时候-取消命令.
·正在确定法术等的目标的时候在小地图上右击-把屏幕移动到小地图
点击的地方.
键盘 Esc -取消指令.
Tab -在编队中的相同单位的小组之间切换.
Alt (如果在发出命令的同时按下) - Overrides formation movement
during an action.
Alt-G -在小地图上发信号.按下后点击小地图确认给盟友发出信号的目
标.
Alt-T -开/关在小地图上显示地形.
Alt-A -开/关简单颜色设置.(你自己一种颜色,所有的盟友一种颜色,所有的敌人一种颜色.)
Alt-F -开/关阵型模式.当打开的时候,肉搏兵种会自动排列在远程攻击兵种前面.
Ctrl (如果在发出命令的同时按下) -只对选定的兵种发出命令.
Ctrl + # -将选定的部队编制为#号部队.
Shift + # -将选定的部队加入#号部队.
# -选定#号部队,连续按下2次则将屏幕移动到部队那里.
F1-F3 -选定1-3号英雄.连续按下2次则将屏幕移动到英雄那里.
F8 -循环选定空闲的工人.不断的在空闲的工人之间切换.
F9 -打开任务记录窗口.可以让你查看所有的主要任务和可选任务以及完成的状态.
F12 -多人游戏下是打开聊天记录窗口,单机模式下是打开全部消息的记录窗口.聊天记录窗口记录了所有你发出和收到的信息,记录窗口则保存了你在此关中从NPC处获得的消息或者提示.
Backspace -把屏幕中央移动到你的城镇中心.
Spacebar -把屏幕中央在过去的8个事件的发生点循环移动.
Alt-C or Ctrl-C -把屏幕中央移动到你选定的单位处.
Shift+选定单位-从当前选定的部队中添加/删除点击的单位.
CTRL+选定单位或者双击单位-选中屏幕附近所有的此种单位.
人族
城镇中心中的快捷键
集结点：Y-----背包技能：B-----回到工作：W------主城升级：U 农民快捷键
建造：B-----修理：R-----采集：G------号召：C
指令取消
