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 urinary concentrations of lactulose and mannitol were determined by a refractive index detector.
  上用示差检测器测定尿液中乳果糖和甘露醇的浓度。
• After equilibrium is attained, drug concentrations in tissues and in extracellular fluids are reflected by the plasma concentration.
  达到分布平衡后，便可通过血浆浓度反映组织和细胞外液的药物浓度。
• Effects of Low and High Plasma Concentrations of Dexmedetomidine on Myocardial Perfusion and Cardiac Function in Healthy Male Subjects.
  在健康男性受试者中，高血浆浓度和低血浆浓度美托咪定对于心肌灌注和心功能的影响。
• We can calculate the different concentrations of wine and water.
  我们可以计算出葡萄酒和水的不同浓度。
• 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。
• Objective To observe the effect of relative humidity on indoor concentrations of formaldehyde and ammonia.
  目的观察相对湿度对装修后室内空气中甲醛和氨浓度的影响。
• The changes in concentrations of organic matter were monitored in the high-intensity aquaculture ponds.
  摘要对对虾高密度养殖水体中有机物含量的变化进行了监测和分析。
• The results showed that different concentrations of cadmium ions affect differently the growth and activity of the bacteria.
  研究表明：不同浓度的镉离子对细菌的生长和活性起不同的作用。
• Measure k equilibrium by obtaining the equilibrium concentrations of B and A.
  测量k平衡，通过得到B和A的平衡浓。
• However, studies of PRP have yielded varying results, likely reflecting differing platelet concentrations.
  然而，PRP的研究产生了不同的结果，可能反应了不同的血小板浓度。