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        aggregation 
        [ˌæɡrɪ'ɡeɪʃn]
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| n.聚合,组合;凝聚 | 
            
   
    
    
    
        
        | 参考例句: | 
        
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                        1. A high polymer is a very large aggregation of units. 一个高聚物是许多单元的非常大的组合。2.  Moreover, aggregation influences the outcome of chemical disinfection of viruses. 此外,聚集作用还会影响化学消毒的效果。
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