selector lever造句

例句与造句

1. Spindle feeds and speeds are controlled by selector levers which engage the proper gears in the drill head .
   主轴的进能量和转速是通过选速杆使主轴箱中的适当齿轮相啮合而控制的。
2. It's difficult to find selector lever in a sentence. 用selector lever造句挺难的