A.不均勻細(xì)數(shù) B.有效粒徑 C.曲率系數(shù) D.界限粒徑
A.46.7kN/m B.42.6kN/m C.96.28kN/m D.105kN/m
A.4倍 B.3倍 C.6倍 D.5倍