coefficientlyadv.共同作用地coefficientn.系数coefficient of friction of rest静止摩擦系数coefficient of kinetic friction动摩擦系数coefficient of part correlation部分相关系数coefficient of cross elasticity交叉弹性系数coefficient of sound insulation隔音系数coefficient of mine air leakage矿井漏风系数coefficient of genetic likeness遗传相似系数coefficient of natural increase自然增长系数coefficient of rolling friction滚动磨擦系数,滚动摩擦系数coefficient of dynamic friction动摩擦系数