Highvoltage power supply is the indispensable part of the working circuit of the vacuum electronic components.

高压电源在真空电子器件的工作电路中一般是不可缺少的。

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DPA structure and working principle is described. Its working circuit is analyzed and its fault self-diagnosis method and procedure is introduced here.

主要阐述双驻车辅助系统（DPA）的结构及工作原理，对其电路工作情况进行了分析，介绍了该系统进行故障自诊断的方法及步骤。

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Through dynamic analysis of D2 and PD2 topographics maps, there might be a working circuit from both temporal lobes to C3, F7(or F3) under mental arithmetic task.

我们通过D2和PD2地形图的动态分析，认为在心算过程中可能存在从双侧颞部→C3、F7（或F3）的工作环路。

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