一旦被（化学）分散，随后浮油就更容易被进化到以碳氢化合物等天然污染源为食的细菌降解。
Once dispersed , the oil can then be broken down more easily by bacteria that have evolved to live off natural sources of hydrocarbons.
随着集中的污水处理解决了城市生活污水的污染问题，分散的点污染源已经开始引起人们的重视。
With centralized wastewater treatment resolved the pollution problems of urban sewage, Decentralized point pollution has begun to get a great attention.
根据铁路主要企业含油工业废水中油种来源及污染源特点，非分散红外光度法为首选方法。
As the characteristics of different oils in the industrial waste water and pollution sources of the railway enterprises, the non dispersion infrared photometry is the first selection.
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