短語詞組短語grain n composition 粒度組成grain boundary composition 晶界成分grain size composition 粒度組成grain size composition of rock 巖石的粒度組成grain -size composition 粒度組成discontinuity of grain composition 顆粒組成間歇性Soil grain composition 土壤顆粒組成the grain composition 顆粒組成cereal grain composition 佔穀物組成 返回 grain composition