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altium designer 中room 是做什么用的?
2014-5-12 20:03
- PCB技术
- 5
- 13591
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飞针测试机上,针坐上的压力感应器的原理是什么
2014-5-12 20:02
- PCB技术
- 1
- 1339
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PCB板价格是如何估算出来的?——详解
2014-6-25 14:12
- PCB技术
- 3
- 2221
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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单片机控制NRF24L01的无线收发装置设计
2014-5-12 19:59
- PCB技术
- 1
- 1237
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
数字高清平滑升级:HD-SDI
2014-5-12 19:58
- PCB技术
- 1
- 1243
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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有关晶体振荡器和模拟信号的布线的问题
2014-5-15 14:35
- PCB技术
- 10
- 3477
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
求高手**
2014-5-12 19:56
- PCB技术
- 3
- 2105
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
CP-203
2014-5-12 19:56
- PCB技术
- 1
- 1195
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
求教altium designer10打印问题
2014-5-12 19:55
- PCB技术
- 1
- 1308
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自制PCB使个别字体在板子上显示
2014-5-12 19:54
- PCB技术
- 1
- 1598
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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嵌入式PCB技术群,欢迎大家加入探讨!!!
2014-5-12 19:53
- PCB技术
- 1
- 1526
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pcb布板求助啊!大侠们有空来看下!先谢谢了!
2014-5-13 09:40
- PCB技术
- 3
- 1398
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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什么是PTC(自恢复保险丝)?
2014-8-17 22:42
- PCB技术
- 3
- 2016
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
CAD 2012**文件
2014-5-12 19:51
- PCB技术
- 1
- 1175
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
altium designer绘制原理图时图形的层次问题
2014-5-12 19:51
- EDA 技术
- 3
- 1628
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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怎么利用protel测量电路板局部的覆铜面积
2014-5-12 19:50
- EDA 技术
- 1
- 1625
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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【飞思卡尔Kinetis E第四季】 FRDM-KE02Z开发板大放松!
2014-5-12 19:47
- PCB技术
- 1
- 1038
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
PCB设计消除信号反射的匹配方式有哪些?
2014-5-26 23:32
- PCB技术
- 2
- 1547
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2
3
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