lubrication drip

例句：

1. 1. The engine needs to be lubricated regularly to prevent wear and tear.
   发动机需要定期润滑，以防止磨损。
2. 2. The car's oil pan was filled with lubrication dripping down from the engine.
   汽车的油盆里充满了从发动机滴落的润滑油。
3. 3. During the maintenance, a technician noticed a lubrication drip that could indicate a potential problem.
   在维护期间，一名技术人员注意到了一个可能预示着潜在问题的润滑滴落。