concentration[,kɔnsən'treiʃən]n.1.■集结,集中,聚集2.■专注,专心3.■浓度;密度;浓缩4.■浓缩物;集中之物
concentrationconcentration[ˌkɔnsenˈtreiʃən]n.1.■集中, 专心2.■【化】提浓, 蒸浓, 浓缩; 浓度;【采矿】汰选3.■集中物, 集结物; 密集(的东西)concentrations of enemy troops敌军的集结company concentration垄断化(水平)with deep concentration专心concentration cell浓差电池concentration plant选矿厂concentration camp集中营concentration ring【军】集索圈