短語(yǔ)詞組短語(yǔ)weight average particle size 質(zhì)量平均粒逕average particle size aps 平均粒逕cta average particle size cta 平均粒逕an average particle size 平均粒逕average particle size distribution 平均粒逕分佈average size of particle 平均顆粒大小particle size average 粒度平均值;平均粒逕 返回 average particle size