| 单词 | concentration |
| 释义 | Word Frequency concentration(ˌkɒnsənˈtreɪʃən) noun 1. intense mental application; complete attention 2. the act or process of concentrating 3. something that is concentrated 4. the strength of a solution, esp the amount of dissolved substance in a given volume of solvent, usually expressed in moles per cubic metre or cubic decimetre (litre) Symbol: c5. the process of increasing the concentration of a solution 6. military a. the act of bringing together military forces b. the application of fire from a number of weapons against a target 7. economics the degree to which the output or employment in an industry is accounted for by only a few firms 8. another name (esp US) for Pelmanism |
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