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1·The control scheme and operating principle of a double closed-loop AC/DC power converter system are discussed by using physics.

从物理角度讨论了双闭环交/直流功率变换器系统的控制方案和工作原理。

2·DC power Input, built-in fuse.

直流电源输入，内置保险丝。

3·This equipment can only use 12v DC power.

本设备只能使用12 V直流电源。

4·Operation From DC Power Supply: Batteries.

使用直流电源：干电池。

5·Rectifying antenna(rectenna) can convert microwave power to DC power.

整流天线能把空间的微波能量转化为直流能量。

6·This paper researches on the static stability of the AC/DC power system.

本文主要进行交直流联合系统静态电压稳定性的研究。

7·The paper introduces the principle and the measuring method of DC power supply .

本文介绍了直流稳压电源的基本原理及其检测方法。

8·On the condition without DC power, the SCR could be used to realize dynamic braking.

在无法取得直流电源的情况下，利用可控硅元件，也可实现能耗制动。

9·The power contains the DC power supply, high voltage divider and spark gap switching.

该电源包括直流电源、高压分压器、和火花间隙开关。

10·DC circuit breakers are the most important protection equipments for DC power system.

直流断路器是直流供电系统中极其重要的保护设备。