门装置 meaning in Chinese

door gear
door mechanism

Service door equipment for urban bus
城市客车乘客门装置
Fault on bow - door apparatus to be solved by using bidirectional hydraulic lock skilfully
巧用双向液压锁解决某舰艏门装置故障的难题
Put a roll of paper towels on the ground and lower the door . if it doe ’ t reverse upon contact , get a new opener
把一卷厨房用纸放在地上,关闭车库门.如果车库门碰到这卷纸而没有弹回的话,就应当换新的车库门装置了
Put a roll of paper towels on the ground and lower the door . if it doesn ' t reverse upon contact , get a new opener
把一卷厨房用纸放在地上,关闭车库门.如果车库门碰到这卷纸而没有弹回的话,就应当换新的车库门装置了