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柯林斯词典释义
行业词典释义

福克斯词典 \ 英汉词典 \

Concentrations是什么意思？

Concentrations

英[kɒnsənt'reɪʃnz] 美[kɒnsənt'reɪʃnz]

n. 集中( concentration的名词复数 )，专心，关注，浓度；

例句

EIAA overestimates the concentrations at further downwind distance by more than a factor of 2. 对于下风向远距离处的浓度,EIAA的预测值高了一半以上.
Dates, cranberries and red grapes have high concentrations of antioxidants, he said. 枣子、蔓越苺和红葡萄的抗氧化剂含量很高, 他说.
At lower concentrations they may even be stimulants of cell division. 在浓度较低时,它们甚至能促进细胞分裂.
INTERPRETATION: GKI infusions significantly reduced plasma glucose concentrations and blood pressure. 结论: 静脉滴注GKI显著降低血压和血糖浓度.
Barium is found in some oilfield brines in concentrations greater than 100 mg / litre. 在有些油田卤水中,钡的浓度大于100毫克/升.
Large concentrations of capital were in the hands of merchants. 大量资本集中在商人手里.
Rough calculations obtained by use of molar concentrations rather than activities are sufficient. 根据克分子浓度而非根据活度得到的粗略计算结果即可满足要求.
Expression of hydrogenion concentrations in terms of molar concentrations is rather cumbersome. 用摩尔浓度表示氢离子浓度是相当麻烦的.
Relative concentrations of molecular and metallic ions in midlatitude intermediate and sporadic - E layers. 在中纬度中和时现E层分子和金属离子的相对浓度.
More diphenylthiocarbazone should be used to estimate barbiturate concentrations above 1 mg / dl. 当测定浓度超过1毫克/100毫升的巴比妥类药物时,必须用更多的双硫腙.

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柯林斯高阶英汉双解学习词典释义

N-UNCOUNT

全神贯注;专心;专注

Concentration on something involves giving all your attention to it.
例句
Neal kept interrupting, breaking my concentration... 尼尔不停地打断我，使得我无法集中注意力。 We lacked concentration and it cost us the goal and the game. 我们注意力不够集中，结果丢了球，输了比赛。
N-VAR

集中;汇集

A concentration of something is a large amount of it or large numbers of it in a small area.
例句
The area has one of the world's greatest concentrations of wildlife... 这个地区是世界上野生动物最为密集的区域之一。 There's been too much concentration of power in the hands of central authorities. 权力一直过多地集中在中央机构手中。
N-VAR

浓度

The concentration of a substance is the proportion of essential ingredients or substances in it.
例句
pH is a measure of the concentration of free hydrogen atoms in a solution... pH值是测试溶液中自由氢原子浓度的单位。 The latest data showed that global ozone concentrations had dropped several per cent over the last decade. 最新数据显示，过去10年来全球臭氧的浓度降低了几个百分点。

行业词典

土壤学：浓聚物；土壤溶液或悬浮液中的细粒物质经移动沉积后聚集成的物质。；

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