concentration中文什么意思

n.
1.集中。
2.【化学】提浓，蒸浓，浓缩；浓度；稠密度；【矿物】汰选，选矿，富化。
3.集中注意，专心。
+更多解释...短语和例子
multi-stage ore concentration多段选矿法。 with deep concentration专心。

• concentration of no:    一氧化碳浓度
• concentration on:    注意力集中于
• a concentration of flights:    一次集中飞行

例句与用法

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1. She wrinkled her brows in concentration .
   她蹙额皱眉，陷入沉思。
2. S is the concentration of unpaired nucleotides .
   S是不配对的核苷酸的浓度。
3. Freckles are simply concentrations of melanin .
   雀斑不过是高浓度的黑色素。
4. This concentration is not dissipated by agents .
   这一浓缩不会被媒介所冲淡。
5. Some of the concentrations are negligibly small .
   某些浓度小到可以忽略不计。

英文释义

名词

1. strengthening the concentration (as of a solute in a mixture) by removing diluting material
2. bringing together military forces
3. great and constant diligence and attention
   同义词：assiduity, assiduousness
4. the strength of a solution; number of molecules of a substance in a given volume
5. the spatial property of being crowded together
   同义词：density, denseness, tightness, compactness
6. complete attention; intense mental effort
   同义词：engrossment, absorption, immersion
7. increase in density