求翻译：文章介绍了一种自行设计的控制电路，能够达到市电供电时风机停止，油机供电时风机自动运行，同时附带了手动控制开关的功能。是什么意思？

Article describes a self-designed control circuit, the electricity supply can be achieved when the fan stops, the engine power automatically when the fan runs at the same time with the manual control switch functions.

article describes a method of self-designed commercial power supply control circuit, and can be reached at electricity wind machine stops, oil machine wind machine automatically run it manually, and at the same time spin-off control switch function.

The article introduced one kind independently designs the control circuit, can achieve when city electricity power supply the air blower stops, the kerosene engine supplies power when the air blower automatic movement, has simultaneously supplemented the hand control switch function.

正在翻译，请等待...

The article introduces a kind of self-designed control circuit, can reach the city electricity while supplying power the air blower stops, the air blower runs automatically when the oil machine supplies power, attached the function of controlling the switch manually at the same time.