door switch meaning in English

门动开关
门户开关
门开关
门锁开关

General spacifications for air door switching motion transducer in mine
矿用风门开闭状态传感器通用技术条件
Door switches for automobiles
汽车车门开关
Abstract : the method to realize rise and fall o f elevator and control of the door switch by a frequency converter was introduc ed
文摘:介绍了电梯改造中用一台变频器实现电梯升降及门开关控制的方法，以及电梯调试的一点体会