flap-covered lubricator

例句：

1. 1. This new model of the car has a flap-covered lubricator that can be easily accessed for oil changes.
   这款汽车的新型号有一个可折叠的覆盖润滑器，便于更换机油。
2. 2. The engineer used a flap-covered lubricator to lubricate the gears during theassembly process.
   工程师在装配过程中使用了一个可折叠覆盖润滑器来润滑齿轮。
3. 3.The technician replaced the worn out flap-covered lubricator with a new one, ensuring smooth operation of the machine.
   技师用一个新的可折叠覆盖润滑器替换了磨损的润滑器，确保机器的顺畅运行。