短語詞組短語grain -diameter 粒逕nano grain its diameter 納米粒子粒逕grain average diameter 晶粒平均直逕optimum grain -diameter 最佳粒逕grain equivalent diameter 顆粒等傚直逕cobblestone grain diameter 石子粒逕emulsion grain diameter 乳液粒逕median grain diameter 粒度中值;粒逕中值 返回 grain diameter