The drive system consists of AC servomotor, ball screw and rectilinearorbit etc.
本传动系统由交流伺服电机、滚珠丝杠及直线导轨等组成。
2
The rectilinear movement has thus become changed into a circular motion of extreme velocity, and it is now pursuing an elliptical orbit round the moon, of which it has become a true satellite.