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allegro 需要导出哪些文件嘉立创才能自动识别
2020-10-12 16:13:29
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阻抗匹配是指在能量传输时，要求负载阻抗要和传输线的特征阻抗相等，此时的传输不会产生反射，这表明所有能量都被负载吸收了。反之则在传输中有能量损失。在高速线路板打样设计中，阻抗的匹配与否关系到信号的质量优劣。
1、PCB走线什么时候需要做阻抗匹配？
不主要看频率，而关键是看信号的边沿陡峭程度，即信号的上升/下降时间，一般认为如果信号的上升/下降时间（按10%～90%计）小
2022-09-09 08:00:02
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ucoslwiptcpip应用心得希望有帮助
2016-07-19 20:41:02
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adc0808的有个应用，c语言源代码控制产生信号源
2016-12-24 10:01:03
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各种matlab算例应用尽有，对matlab的初学者有很大的帮助。
2014-11-24 00:02:02
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this an OOP file which is very easy to understand. So, it is very suitable for the beginner to read.
2013-12-17 00:26:07
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this an OOP file which is very easy to understand. So, it is very suitable for the beginner to read.
2016-02-06 00:52:01
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this an OOP file which is very easy to understand. So, it is very suitable for the beginner to read.
2016-02-06 00:54:02
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this an OOP file which is very easy to understand. So, it is very suitable for the beginner to read.
2013-12-14 09:01:02
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this code helps u to understand the basic thing to connect visual basic with sqlserver. this ll be very
2013-12-19 14:28:07
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Understanding the Linux Kernel helps readers understand how Linux performs best and how
it meets the
2017-06-17 20:04:02
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同样的输入输出电压、同样的功率、同样的封装，不同厂家的电源模块，哪个性能更好？对于一个性能优良的电源模块来说，需要测试的项目很多，而且这些性能之间是紧密联系的，本文挑选其中几个方面的性能进行对比阐述。
2022-12-23 20:20:02
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In order to thoroughly understand what makes Linux tick and why it works so well on a wide variety of
2014-12-07 06:39:02
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Very good document to understand Reed-Soloman coding.
2014-01-19 02:54:09
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It has helped so many people understand DVD technology.
2013-12-21 13:51:08
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This is a resource based on j2me embedded,if you dont understand,you can connection with me .
2017-08-09 20:44:02
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628512在实际电路中的应用图纸,有实际应用的意义.
2013-12-28 00:22:08
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LFSR is linear fedback shift reg is fine dirnf shifting process.vhdl code to understand its functioning
2017-09-05 20:50:02
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JAVA相关基础知识
1、面向对象的特征有哪些方面
抽象：
抽象就是忽略一个主题中与当前目标无关的那些方面，以便更充分地注意与当前目标有关的方面。
2017-01-04 00:29:02
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ＡＪＡＸ在ＷＥＢ中的应用的论文。．希望对有需要的朋友有帮助。．
2015-09-15 10:06:01
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