The principle of main circuit and control circuit is also discussed in this paper.
并介绍其主电路和控制电路原理。
The transformation contents of the main circuit and control circuit are introduced briefly.
简要介绍了主回路和控制回路的改造内容。
This article analyzes the main circuit and control circuit of the welder, also points out the troubleshooting and solutions.
对焊机主电路和控制电路进行了解析，给出了常见故障的处置和维修方法。
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