concentration
concentration
noun
noun
- [mass noun]the action or power of focusing one's attention or mental effort
专心，专注；注意力
frowning in concentration.
蹙额深思。
the worker needs total concentration.
这个工人需要全神贯注。
■(concentration on/upon)dealing with one particular thing above all others
（仅）处理；（仅）注重
concentration on the needs of the young can mean that the elderly are forgotten.
对年轻人需求的注重可能意味着对老年人的忽视。 - a close gathering of people or things
聚集者；集中物；集结物
the island has the greatest concentration of seabirds in the north-west.
此岛集中了西北部最多的海鸟。
■[mass noun]the action of gathering together closely
集中；集结
the concentration of power in the hands of nobles.
贵族手里集中的权力。 - the relative amount of a particular substance contained within a solution or mixture or in a particular volume of space; the amount of solute per unit volume of solution
浓度；含量
the gas can collect in dangerous concentrations.
此种气体能聚积到引起危险的浓度。
■[mass noun]the action of strengthening a solution by the removal of water or other diluting agent or by the selective accumulation of atoms or molecules
浓缩
热门查询
- devoir n.礼貌，尊重，敬意
- devolatilization n.液化作用
- devolatilize v.使（蒸气）液化，除去挥发成份
- devolute vt.<罕>移交，转移
- devolution n.移交，授权,转移,授权代理
- devolutionist n.支持地方分权者
- devolve vt.& vi.移交,转移,交给下属（或下层、晚辈等）,衰落
- devonian adj.德文郡的，（地质）泥盆纪（古代生物的一个时期）的 n.德文郡，泥盆纪
- devonshire n.英格兰西南部的州
- devote vt.把…奉献（给），把…专用（于）,奉献
- devoted adj.献身的,忠诚的,挚爱的,专心的 v.献身于…,致力于…(devote的过去分词)
- devotedly adv.专心地,恩爱地,忠实地,一心一意地
考试词汇表
