暂: short; momentary按: press; push down开: open; turn on; switch on; be ...电门: switch way; method; access警铃断开电门: bell isolation switch应急断开电门: emergency disengage switch开电: switch on按开关: flick a switch电门: [口语] (开关) (electric) switch按开市盘: at the opening开电梯: operate an elevator常开电磁阀: normally open solenoid valve打开电视: turn on the tv打开电视机: turn on the tv断(开电)路回路: broken circuit断开电流: breaking current; deenergizing断开电路: break contact; broken circuit; isolated switch; isolating switch; isolator switch; open circuit; to disconnect a circuit断开电容: breaking capacity/open capacity断开电压: off voltage断开电源: deenergization; power off; poweroff断开电阻: off resistance分开电路: separate circuits开电视机: turn on the TV开电梯的人: liftboy; liftman开电自检: power-on self-test