This article briefs the overall operation and maintenance situation of direct current (dc) system in Northeast power Grid Corp. in 2000 -2004.
介绍了2000 - 2004年东北电网公司直流系统的整体运行情况及管理情况。
The operation and performances of a new type direct current high voltage power supply are described.
本文阐述了一种用于核探测器的新型直流高压电源的原理及性能特点。
The functions of direct current supply of accumulator were introduced. The operation results showed that the power supply had a good operation effect, and a low cost.
介绍了蓄电池直流电源的作用及功能，运行结果表明，该电源运行效果良好且成本低。
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