mains switch的用法和樣例:
例句
- Turn on the main source switch, and the Control Unit is now put in work.
打開主電源開關時控制部件將開始工作。
- The mains switch is located on the rear cover along with the AC inlet, all the other knobs and jacks are on the front.
電源開關位於后蓋一起交流入口,所有其他的旋鈕和插孔都在前線。
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