concentration造句

• She wrinkled her brows in concentration .
  她蹙额皱眉，陷入沉思。
• S is the concentration of unpaired nucleotides .
  S是不配对的核苷酸的浓度。
• Freckles are simply concentrations of melanin .
  雀斑不过是高浓度的黑色素。
• This concentration is not dissipated by agents .
  这一浓缩不会被媒介所冲淡。
• Some of the concentrations are negligibly small .
  某些浓度小到可以忽略不计。
• Ambient concentrations varied considerably by season .
  环境浓度随季节而大幅度变化。
• The colon is the locus of a large concentration of bacteria .
  结肠是大浓度的细菌所在地。
• There was something pathetic in his concentration .
  他那副专心致志的劲头看上去有点可怜。
• Higher salt concentrations alone may inhibit ion uptake .
  单单只是盐浓度高就会阻碍离子吸收。
• At high calcium concentration they fuse without lysis .
  在钙离子浓度高时，他们融合而不解体。
• His concentration was intense .
  他全神贯注。
• The altitude of the peak concentration was lowest in the summer .
  在夏季，峰值浓度的高度为最低。
• At low concentrations these effects are small and variable .
  在低浓度下，这些影响很小并且是形式多变的。
• The latex concentration is raised by evaporation or centrifugation .
  通过挥发或离心作用提高胶乳的浓度。
• It also contains high concentrations of proline and hydroxyproline .
  它还含有高浓度的脯氨酸和羟脯氨酸。
• The expression of pain and concentration returned to piggy's face .
  痛苦和专注的神色又回到了猪崽子的脸上。
• These are more commonly described as the "labile" metal concentrations .
  这些通常称之为“不稳定”金属浓度。
• A large proportion of the fluorine is vaporized during the concentration process .
  在浓缩过程中大部份氟蒸出。
• 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。