Motherboard &amp; etc
电脑主机板等等的电路板。

From the control system the boards include masterboards, axis, graphic, memory, operator, i/o boards and from drives axis, servo and spindle PCB’s. 
发那科控制系统电路板包含：主机板，轴向控制卡，显示卡，内存卡，操作卡，主轴控制卡等等的电路板组成。

Wire Cut Printed Circuit Board (PCB) 线切割电板

A printed circuit board (PCB) mechanically supports and electrically connects <a href="https://en.wikipedia.org/wiki/Electrical" target="_self">electrical</a> or <a href="https://en.wikipedia.org/wiki/Electronic_components" target="_self">electronic components</a> using <a href="https://en.wikipedia.org/wiki/Electrical_conductor" target="_self">conductive</a> tracks, pads and other features <a href="https://en.wikipedia.org/wiki/Industrial_etching" target="_self">etched</a> from one or more sheet layers of copper <a href="https://en.wikipedia.org/wiki/Laminated" target="_self">laminated</a> onto and/or between sheet layers of a <a href="https://en.wikipedia.org/wiki/Insulator_(electricity)" target="_self">non-conductive</a> substrate. Components are generally <a href="https://en.wikipedia.org/wiki/Soldering" target="_self">soldered</a> onto the PCB to both electrically connect and mechanically fasten them to it. 
电路板的名称有：陶瓷电路板，<a href="https://baike.baidu.com/item/%E6%B0%A7%E5%8C%96%E9%93%9D%E9%99%B6%E7%93%B7/5616170" target="_blank">氧化铝陶瓷</a>电路板，<a href="https://baike.baidu.com/item/%E6%B0%AE%E5%8C%96%E9%93%9D%E9%99%B6%E7%93%B7/1060408" target="_blank">氮化铝陶瓷</a>电路板，<a href="https://baike.baidu.com/item/%E7%BA%BF%E8%B7%AF%E6%9D%BF/3832594" target="_blank">线路板</a>，<a href="https://baike.baidu.com/item/PCB%E6%9D%BF" target="_blank">PCB板</a>，<a href="https://baike.baidu.com/item/%E9%93%9D%E5%9F%BA%E6%9D%BF/5879616" target="_blank">铝基板</a>，<a href="https://baike.baidu.com/item/%E9%AB%98%E9%A2%91%E6%9D%BF/1224414" target="_blank">高频板</a>，厚铜板，阻抗板，<a href="https://baike.baidu.com/item/PCB/146397" target="_blank">PCB</a>，超薄线路板，超薄电路板，印刷（铜刻蚀技术）电路板等。电路板使电路迷你化、直观化，对于固定电路的批量生产和优化用电器布局起重要作用，电路板可称为<a href="https://baike.baidu.com/item/%E5%8D%B0%E5%88%B7%E7%BA%BF%E8%B7%AF%E6%9D%BF/351168" target="_blank">印刷线路板</a>或<a href="https://baike.baidu.com/item/%E5%8D%B0%E5%88%B7%E7%94%B5%E8%B7%AF%E6%9D%BF/10690193" target="_blank">印刷电路板</a>。

Printed Circuit Board (PCB) 电路板 控制卡

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PC Mainboard 主机电路板

PC Mainboard 主机 电路板

PC Mainboard 主机电路板