concentrate

concentrate on,集中精力于；全神贯注于

copper concentrate,铜精矿

ore concentrate,精矿

zinc concentrate,锌精矿；精炼锌

protein concentrate,浓缩蛋白；蛋白质精料

iron ore concentrate,铁精矿，铁精砂

lead concentrate,铅精矿；铅精矿砂

magnetite concentrate,磁铁精矿

soy protein concentrate,大豆浓缩蛋白；[医]浓缩大豆蛋白

rough concentrate,粗精矿

concentrate upon,专心于；集中在

真题例句...Although calls to share data often concentrate on the moral advantages of sharing...第二套CET62017.6阅读理解