霸气甫爷
滑油[huá yóu]
[词典] (润滑油) grease; slide oil; unguent
[例句]
Lubricating oil of the low pressure system supplies the main and otherbearings.
低压系统的滑油供给主轴承和其它轴承。
骆驼非洲
润滑剂 [词典] lubricant; lube; unguent; emollient; [例句]我认为幽默是人生的上好润滑剂。I think humor is a great lubricant for life.
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