coefficient unit常数部件,系数部件,系数组coefficientn.系数coefficient of increase and decrease增减率coefficient of partial determination偏测定系数coefficient of frictional resistance摩阻系数coefficient of thixotropic breakdown触变破坏系数coefficient of pressure transmission穿室系数coefficients of stress concentration应力集中系数coefficient of contraction of nozzle喷嘴收缩系数coefficient of mechanical efficiency机械效率系数coefficient of utilization of energy能的利用系数coefficient of genetic determination遗传决定系数