| 单词 |
concentration |
| 释义 |
con·cen·tra·tion /ˌkɒnsənˈtreɪʃən/
n.
1. 集中
a concentration of industry 工业的集中
concentrations of enemy troops 敌军的集结
2. 专心，专注
Concentration is the key to learning. 专心是学习的关键。
3. 浓缩； 浓度
The acid solution is of weak concentration. 这种酸溶液浓度低。
a concentration cell 浓差电池
4. 【矿】精选，富集
5. 集中物；浓缩物
a concentration of fish 一群鱼
6. 【军】兵力的集中；火力的集中(密度)
[< L com- together + centrum centre] |
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