pressure circulation lubricating system

例句：

1. 1. Thepressure circulation lubricating system iscrucial for maintaining the smooth operation of machinery.
   压力循环润滑系统对于保持机械的顺畅运行至关重要。
2. 2. The engineer designed a new pressurecirculation lubricating system to improveefficiency.
   工程师设计了一种新的压力循环润滑系统，以提高效率。
3. 3. The pressure circulation lubricating system was installed in the factoryto prevent wear and tear on machinery.
   在工厂安装了压力循环润滑系统，以防止机械磨损。