利用沼肥可替代部分化肥，生产无公害农产品，使沼气工程的经济效益、社会效益和生态效益大大提高。
The economical, social, and ecological benefits of biogas engineering would be improved greatly by the utilization of biogas residues on the production of safe food.
人、畜粪便和各种农作物秸秆等投入沼气池内经密封发酵后的残余物统称为沼肥。
Biogas fertilizer is defined to be remnants after the fermentation of faeces of human and animals and various crop stalks within sealed digesters.
人、畜粪便和各种农作物秸秆等投入沼气池内经密封发酵后的残余物统称为沼肥。
Biogas fertilizer is defined to be remnants after the fermentation of faeces of human and animals and various crop stalks within sealed digesters.
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