contact pairs短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 🌏接触对；接触设定 All the fluidic mediums, such as pure water, acid rain, seawater and lubricating oils, exhibited lubricating effect and decreased the friction coefficient of contact pairs especially in gross regime. 纯净水、酸雨、海水和润滑油等流体介质均具有润滑作用，降低了微动摩擦系数，并且其润滑作用主要表现在滑移区。 cnki