短語(yǔ)詞組短語(yǔ)fractionating pump 分餾泵;分餾真空泵fractionating tray 翻譯fractionating crystallization 分段結(jié)晶cell fractionating 細(xì)胞分級(jí)分離chromosome fractionating 染色體分級(jí)分離density fractionating 密度分離法pressure fractionating 加壓分餾zinc fractionating 鋅精餾fractionating tower 分餾塔fractionating column 分餾塔;分餾柱 返回 fractionating