You can hear the laser unitmotor spin when you boot the machine up.
你能听到马达旋转激光发射器当你启动机器了。
2
Through in-situ measurements in an oil field. the working conditions of beam unitmotor were analyzed to discuss several methods of electric energy saving.
通过在油田的实地测量，对所得到的抽油机工况进行了分析；讨论了抽油机电气节能的几种方法；
3
The model can be reference for the selection of the hydraulic pumping unitmotor and analysis of mechanical characteristics of other hydraulic pumping units charactered power recovery.