短語(yǔ)詞組短語(yǔ)mean volume particle diameter 平均容積直徑arithmetic mean particle diameter 平均粒徑;算術(shù)平均粒徑harmonic mean particle diameter 調(diào)和平均粒徑logarithmic mean particle diameter 對(duì)數(shù)平均粒徑geometric mean particle diameter 幾何平均粒徑triaxial mean particle diameter 三軸平均粒徑mean molar quantity particle diameter 平均粒子直徑 返回 mean particle diameter