基本解释n.摩擦系数同根派生 frictionfactor相关词英汉例句Keywords Friction;Wear;Frictionfactor;Carbon-carbon composite; 摩擦;磨损;摩擦系数;碳/碳复合材料;High frictionfactor decreased;Hardness has been increased by ten percent; 摩擦系数 大大下降、硬度提高10%25左右;frictionfactor更多例句