短語詞組短語grain -size distribution parameters of sediments 沉積物粒度分布參數(shù)grain n size distribution 粒度級配aggregate grain -size distribution 集料粒徑分布crystal grain porosity size distribution 粒徑分布poorly grain -size distribution 不良級配index sample grain -size distribution 單樣顆粒級配 返回 grain size distribution