drag link grease retainer

例句：

1. 1.The oil reservoir is crucial for the operation of the machine.
   油储存器对于机器的运行至关重要。
2. 2. The engineer carefully checked the oil reservoir to ensure it was functioning properly.
   工程师仔细检查了油储存器，确保其正常工作。
3. 3. The maintenance crew replaced the worn-out oil reservoir with a new one.
   维修团队用一个新的油储存器替换了磨损的旧油储存器。