名词
中文翻译：油脂保持器
同义词：
['lubricant retainer']
例句：
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1.The grease retainer is designed to keep the engine parts from rusting.
油脂保持器设计用来防止发动机部件生锈。
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2.The grease retainer was a crucial part of the machine's operation.
油脂保持器是机器运行的关键部分。
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3. The grease retainer was removed before the engine was serviced.
在对发动机进行维护之前，先取出了油脂保持器。