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润滑油的种类很多,如矿物油、PAO以及可生物降解脂类油等。润滑油分子之间所产生的阻力会阻碍润滑油的流动,这种阻力的大小被称为润滑油的黏度~([1])。黏度是润滑油最重要的性能指标之一,而润滑油的黏度会因为环境温度的变化而改变,温度是润滑油黏度的一个最主要影响因素~([2-4])。测定润滑油运动黏度的方法有很多种,比如落球式黏度计、毛细管式黏度计和旋转式黏度计等。乔辉~([5])采用
Many types of lubricants, such as mineral oil, PAO and biodegradable lipid oils. The resistance between the lubricant molecules hinder the flow of lubricant, the size of this resistance is called the viscosity of the lubricant ~ ([1]). Viscosity is one of the most important performance indicators of lubricating oil, and the viscosity of lubricating oil will change due to the change of ambient temperature. Temperature is one of the most important factors affecting the viscosity of lubricating oil ([2-4]). Determination of kinematic viscosity of lubricating oil there are many ways, such as falling ball viscosity meter, capillary viscometer and rotary viscometer. Qiao Hui ~ ([5]) adopted