润滑的英文：
smooth

参考例句：
  • flood lubrication
    溢流式润滑
  • lubrication system of internal combustion engine
    内燃机润滑系统
  • In drilling an oil well, mud is used to lubricate the cutting bit.
    钻油井时，泥浆被用来润滑钻头。
  • Once a satisfactory system of lubrication has been secured the hardness of the interacting elements becomes critical.
    一旦获得了满意的润滑系统，相互作用的元件的硬度就成为紧要之事。
  • The fire-brigade was called and two firemen freed George using a special type of grease.
    有人打电话叫来消防队，两位消防队员使用了一种特殊的润滑调剂才使乔治得以解脱。
  • The uncoiler is driven by DC motor through gearbox and equipped with hydraulic and lubricating system.
    开卷机由Z4型直流电机通过齿轮箱传动,配有液压系统和润滑系统。
  • The seed of flax,the source of linseed oil and emollient medicinal preparations.
    亚麻籽用于制亚麻油和配制药用润滑膏的亚麻种子
  • Hydrodynamic theory of fluid lubrication
    流体润滑的流体动力学理论
  • Mineral oils are used to lubricate machinery.
    矿物油被用来润滑机器。
  • Centralized lubrication with hand pump.
    带手动泵的集中润滑
smooth是什么意思：
adj. 平坦的，平稳的，八面玲珑的
v. 使平坦，（将软物质）均匀涂抹于
  • smoothing power
    修匀功效
  • In smooth water
    进入顺境
  • This is a smooth wine.
    这是一种醇和的葡萄酒。
  • Smooth water runs deep
    大智若愚
  • It has an orange flavor and smooth texture.
    它有一种桔子的味道，质地光滑。

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