Attached to that structure are eight mechanical arms, each powered by its own directcurrentelectricmotor.
连接到该结构八个机械臂，每个搭载自己的直流电动机。
2
A large disc-shaped rectifying antenna attached to the fuselage harvested the microwave energy, turning it into directcurrent to power an electricmotor attached to the plane's propeller.
机身上的圆盘形整流天线能接收地面传输的微波能，将其转化为直流电为飞机推进器上的电动机供能。
3
Based on the tractive distinction of electric industrial trucks, this paper discusses the problem of matching the direct-current tractive motor with the tractive storage battery.