automatic lubrication

例句：

1. 1. The new car has a sophisticated automatic lubrication system that ensures smooth operation.
   这款新车配备了先进的自动润滑系统，确保了运行的顺畅。
2. 2.In the workshop, the machine is automatically lubricated to prevent wear and tear.
   在车间里，机器被自动润滑，以防止磨损。
3. 3. The engineers designed an automatic lubrication system for the new locomotive to improve efficiency.
   工程师们为新机车设计了一个自动润滑系统，以提高效率。