电源总开关 [
diàn yuán zǒng kāi guān]
[电] battery main switch
- 电磁式电源总开关; 延时释放; 控制;
Electromagnetic battery main switch Delay given off Control; - 插上电源,打开电源总开关,电源指示灯随即著亮;
Plug in the power, turn on power switch, power indicator light then the light; - 离开教研室前请确保电源总开关。 水笼头。 窗户都关好。
Leaves in front of the faculty working office please to guarantee the power source master switch . Water halter . Window all to close.
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