mechanical grease lubricator

例句：

1. 1. The mechanical grease lubricator is used to keep the machine running smoothly.
   机械润滑油泵用于保持机器平稳运行。
2. 2.The engineer replaced the worn-out mechanical grease lubricator with a new one.
   工程师用一个新的替换了磨损的机械润滑油泵。
3. 3. The technician carefully checked the mechanical grease lubricator before starting the engine.
   技术员在启动发动机前仔细检查了机械润滑油泵。