concentrations

英 [ˌkɒnsənˈtreɪʃənz]

美 [ˌkɑnsənˈtreɪʃənz]

n.  专心; 专注; 关注; 重视; 集中; 聚集
concentration的复数

柯林斯词典

• N-UNCOUNT 全神贯注;专心;专注
  Concentrationon something involves giving all your attention to it.
  1. Neal kept interrupting, breaking my concentration...
     尼尔不停地打断我，使得我无法集中注意力。
  2. 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
  Aconcentration ofsomething is a large amount of it or large numbers of it in a small area.
  1. 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。
  2. 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
  Theconcentration ofa substance is the proportion of essential ingredients or substances in it.
  1. 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。
  2. 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。

双语例句

• 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。
• Because at least for that pair of constituents, I know the dependents for some range of concentrations.
  因为至少，对那两个组分，我知道，它对某个浓度范围的依赖关系。
• 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。
• Similarly, risk concentrations that might be acceptable at a single institution in a period of economic expansion could be dangerous if they existed at a large number of institutions simultaneously.
  同样，在经济扩张时期，一个单独的机构可以接受的风险集中，如果在大量的机构中同时存在，就是十分危险的。
• To the ratio of the equilibrium concentrations.
  和平衡浓度的比相关。
• High concentrations of compounds in chocolate called flavonoids may lower blood pressure, short-term studies have shown.
  巧克力中高含量的名为黄酮类的复合物可以降低血压，短期研究已表明。
• Effects of acute loss of energy availability on serum LH and glucose concentrations were studied.
  研究了急性能量阻断对血清促黄体素和葡萄糖的影响。
• Record concentrations and time in order to extract rate coefficients.
  记录浓度和时间，以提取速率系数。
• Selenium and aluminum are found in vanishingly small concentrations within living things.
  硒和铝在生物中含量其微。
• In their paper, the researchers also showed that these high ascorbate concentrations could be achieved in people.
  在论文中，研究人员也表示了这种抗坏血酸的高浓度在人体是可以达到的。