名词
中文翻译：润滑剂输送
同义词：
['lubricate', 'grease']
例句：
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1.The oil was used to grease the gears of the machine.
油被用来给机器的齿轮上油。
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2. The engineer greased the channels with a special lubricant.
工程师用一种特殊的润滑油润滑了通道。
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3.The car's engine needed to be greased before it could start.
汽车发动机需要先润滑才能启动。