电流通过器件或其他介质后流回电源的通路。通常指闭合电路。
单通用电气回路自包含PID控制器。
General purpose electrical with single loop self contained PID controller.
阐述了电气回路中谐波电流产生的原因及其引起中性线和相线过载的危险。
The paper presents the causes of harmonics current and overload hazard of neutral line and phase line by harmonics in electrical line.
在电气回路上如不清楚或不明确线路之极性时,则建议使用无极性电解电容器。
If circuit polarity is unclear or unknown, then non-polar capacitors is recommended.
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