concentration on注意力集中于
concentrationn.集中;专心;浓度
concentration of ideology一统思想
concentration coefficient浓集系数
concentration of dyestuff染料浓度
concentration oscillation浓度振荡
concentration of elements元素含量
concentration autocontrol自控浓度
concentration selectivity选择性富集
concentration of the mind系缘止
concentration colorimeter浓度比色计
concentration sensitivity浓度灵敏度