idler gear pump

例句：

1. 1. The idlegear pump is responsible for maintaining the properoil pressure in the engine.
   怠速齿轮泵负责维护发动机中适当的油压。
2. 2. Theidle gear pump is a critical componentof the engine's cooling system.
   怠速齿轮泵是发动机冷却系统的关键部件。
3. 3.The idle gear pump is designed toprevent the engine from overheating duringlong periods of idling.
   怠速齿轮泵设计用来防止发动机在长时间怠速时过热。