脉冲开关 meaning in English

impulse breaker
impulse switch
pulse switch

Single pulse switch used in mode - locked nd : yag laser
激光器的单脉冲开关
On the aspect of experiment , the investigation has been carried out from simple to complicated , i . e . started from the single pulse and double pulses test of phase module , and then to consecutive - pulse chop test , and then to three phase inverting test
在试验研究上，采用了由简到繁，由易到难的策略，从相构件模块的单、双脉冲开关试验入手，经过模块的连续脉冲斩波试验，再到三相逆变试验。