concentration (EN)

名词

名词 “concentration”

1. 专注
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   She needed complete silence to maintain her concentration while studying for the exam.
2. 浓度（混合物或溶液中所含物质的量）
   The scientists measured the concentration of pollutants in the river water.
3. 浓缩
   The factory specializes in the concentration of fruit juices to create thicker syrups.
4. 聚集
   There was a concentration of birds near the lake during migration season.
5. 专业方向
   Her concentration in university was international relations within the political science department.
6. 对对碰游戏
   The children enjoyed playing concentration on rainy days.
7. 选矿（在采矿中，去除矿石中不需要的材料以增加有价值矿物比例的过程）
   The new technology improved the concentration of silver in the extracted ore.