GratonCOCA¹⁵⁵⁸⁸³ 基本例句 n.格拉顿¹⁰⁰ In an effort to determine approximate limits of porosity values, Slichter and, Later, Graton and Fraser computed the porosity of various packing arrangements of uniform spheres. 为了求得孔隙度的近似界限，斯里西特以及后来的哥拉登和弗雷塞计算了均一球粒在不同堆积形式下的孔隙度。 lqqm