существительное “concentration”
ед. concentration, мн. concentrations или неисч.
- сосредоточенность
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She needed complete silence to maintain her concentration while studying for the exam.
- концентрация (количество вещества, содержащееся в смеси или растворе)
The scientists measured the concentration of pollutants in the river water.
- концентрация
The factory specializes in the concentration of fruit juices to create thicker syrups.
- скопление
There was a concentration of birds near the lake during migration season.
- специализация
Her concentration in university was international relations within the political science department.
- "пары" (игра на запоминание)
The children enjoyed playing concentration on rainy days.
- обогащение (в горном деле, процесс удаления нежелательных материалов из руды для увеличения доли ценных минералов)
The new technology improved the concentration of silver in the extracted ore.