短語(yǔ)詞組短語(yǔ)grain -size composition 粒度組成Paleoenvironment Significance of Grain -size Composition 甘肅臨夏盆地新近紀(jì)紅粘土粒度組成的古環(huán)境意義grain size composition of rock 巖石的粒度組成 返回 grain size composition