elevators电梯elevatorn.<美>电梯；飞机升降舵；斗式皮带输送机elevator apartment高层公寓elevator wrist pin升降机关节销elevator periscope升降式潜望镜elevator appliance起重机械elevator modelling电梯调度Elevator Conveyors垂直输送机elevator mechanism变幅机构Elevator vibration电梯振动elevator tectonics起落构造elevator type bath升降型浴槽(残疾人用)