hoist pump intermediate shaft

例句：

1. 1. The hoist pump is used to lift heavy objects from the ground.
   提升泵用于从地面提升重物。
2. 2. The intermediate shaft is crucial for the smooth operation of the machine.
   中间轴对于机器的平稳运行至关重要。
3. 3. The hoist pump and intermediate shaft are essential components in the construction of a crane.
   提升泵和中间轴是起重机建造中不可或缺的组成部分。