Vertical motional parts

• 垂直运动部件

Vertical motional parts的用法和样例：

例句

1. The engine oil also absorbs the shock and dampens the noise of moving parts.
   发动机机油也吸收震动和降低了噪音的运动部件。
2. The inventor contrived a new kind of engine with fewer moving parts.
   这位发明家发明了一种具有较少运动部件的新型发动机。