lubricant film短语¹⁴⁴⁹⁷²⁺² 基本例句 润滑油膜,润滑膜 Lubricant temperature variation across the film thickness and heat transfer of upper and down surface of lubricant film is taken into account in lubrication calculation of thrust bearings. 在进行水电机组推力轴承的润滑计算时,考虑了油膜温度沿厚度方向的变化,以及油膜上、下表面的热传递; cnki