hydraulic navvy

例句：

1. 1. The new car hasa hydraulic brake system.
   这辆新车有一个液压刹车系统。
2. 2. Thehydraulic pump is responsible for supplying the engine with oil.
   液压泵负责向发动机提供机油。
3. 3. Hydraulicsystems are commonly used in construction machinery.
   液压系统在建筑机械中被广泛使用。