To gather proper data and fend off arbitrary penalties under the Clean Air Act and other laws, livestock producers are now paying for a national study of emissions.
为了收集正确的数据和防止根据清洁空气法和其他法规进行任意处罚，家禽养殖户正赞助从事排放物调查的国家研究所。
To gather proper data and fend off arbitrary penalties under the Clean Air Act and other laws, livestock producers are now paying for a national study of emissions.
为了收集正确的数据和防止根据清洁空气法和其他法规进行任意处罚，家禽养殖户正赞助从事排放物调查的国家研究所。
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