电子束可以把污染物分解成不同的分子化合物，从而帮助清洁水质和空气。
Beams of electrons can help clean water and air by breaking down pollutants into different molecular compounds.
即使全国各地的火力发电厂已经开始行动减少空气污染物的排放，但是却带来另一个问题——水质污染。
Even as a growing number of coal-burning power plants around the nation have moved to reduce their air emissions, many of them are creating another problem: water pollution.
EWG的研究表明，国家应采取新的饮用水水质政策包括对更多的污染物作出限定标准以及把更多资金用于污染物防止措施上。
The EWG study says the nation should adopt new policies for drinking water that include regulating more contaminants and spending more money on measures that prevent pollution.
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