The secondary pollution brought by the biogas and bio-liquid after scale pig breeding residue anaerobic fermentation is very serious.
规模养殖粪污经厌氧发酵后产生的沼气和沼液没有充分利用存在严重二污染。
The secondary pollution brought by the biogas and bio-liquid after scale pig breeding residue anaerobic fermentation is very serious.
规模养殖粪污经厌氧发酵后产生的沼气和沼液没有充分利用存在严重二污染。
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