high viscosity lubricating oil

例句：

1. 1. The engineneeds a high viscosity lubricating oil to run smoothly.
   发动机需要高粘度润滑油才能顺畅运行。
2. 2. Thecar's engine requires a highviscosity lubricating oilto maintain its performance.
   汽车的发动机需要高粘度润滑油来保持其性能。
3. 3. Theengineer replaced the old lubricatingoil with a high viscosityone to improve efficiency.
   工程师用高粘度的润滑油替换了旧的润滑油，以提高效率。