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1·QF3 is overhaul power switch.

QF3为检修电源开关。

2·QF2 is power switch for controlling circuit.

QF 2为控制电路电源开关。

3·Turn on the power switch, power indicator light.

打开电源开关，电源指示灯亮。

4·Set up power switch which can be manually adjusted freely.

设置电源开关，可以自由手动调节。

5·See below for how to access ice and reach the power switch.

制冰机及电源开关的使用参照以下说明。

6·Check that the power switch and air supplier switch are turned on.

检查电源开关和气源开关是否打开。

7·He has also converted what is normally the sleep button to a giant power switch.

除此之外，他还把待机键改装成一个大型电源开关。

8·When it is not used, please turn the power switch off and switch off the power supply.

不使用时，请将电源开关关闭，并切断电源。

9·Turn on the power switch, then turn on the switches in controller. Check phase and voltage.

合上电梯供电开关，再分步控制柜内各控制回路电开关。检查所有电源电压和相序(相序继电器)是否正确。

10·The composition and working principle, advantages of secondary power switch were introduced.

介绍了二次送电开关的结构、工作原理及优点。