Adopt single some earth, multipoint earthing, mix earth, simulation circuit earth, digital circuit earth introduce PCB printed circuit board earth mentality of designing, design method, skill.

并通过单点接地、多点接地、混合接地、模拟电路接地、数字电路接地介绍了P CB印刷电路板接地的设计思路、设计方法与技巧。

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The article introduced the concept of on-line test, expounded the flow and theory of on-line test for PCB(printed circuit board), and analyzed several technics of on-line test.

简单介绍了在线测试这一概念；阐述了印刷电路板在线测试的流程和原理；分析了几种在线测试中的工艺性测试。

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Machining of PCB (printed circuit board) is a typical process of two dimensional multi hole.

印刷电路板pcb的加工是二维多孔数控钻的典型。

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Orbotech Ltd. ( ORBK) is a leading global provider of production solutions for the printed circuit board (PCB) and flat panel display (FPD) markets.

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