电动移动滚筒
electric travelling roller
电动移动式起重机
electric travelling crane
无线移动警务系统
Wireless mobile police office system
移动警务通
mobile phone for police affairs
移动警务系统
mobile police office system
police mobile computer system
police mobile system
移动移步转移模式
mobile asynchronous transfer mode
轴传动移动起重机
shaft driven travelling crane
辅助制动警告灯
secondary brake warning light
自动告警信号键控装置
automatic-alarm-signal keying device