coefficient unit常数部件,系数部件,系数组coefficientn.系数coefficient of pressure conductivty压力传导系数coefficient of flexibility of price价格伸缩系数coefficient of humic acid stability腐殖酸安全系数Coefficient of wind speedrweakening减弱系数coefficient of velocity attenuation速度衰减系数coefficient of frequency modulation调频系数coefficient of thermal transmission传热系数coefficient of density interference密度干涉系数coefficient of mean wind-pressure平均风压系数Coefficient of influence by heating采暖影响系数