float operated explosion-proof mercury switch 浮子操动防爆金属汞开关 engaged switch 接通开关 bank switc你好ng 储存库开关 ..
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这些开关可接通形成闭合电路。
狱长看了看钟，另一名狱警已在控制室就位，准备随时拉动开关接通到电椅的电流。
The Pope checks the clock while another C.O. mans the switch that activates the electric current into the chair.
开关接通，1,000伏特的交流电猛击凯姆勒。
The switch was thrown, and 1,000 volts of AC slammed into Kemmler.
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