... 这是他的书包吗 » Is this the right his bag 畜禽养殖业污染 » Livestock and poultry farming pollution 体操课 » Gymnastics classes ...
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After analyzing the serious situation of water pollution arising from poultry and livestock farming, this article gave the countermeasures for pollution from poultry and livestock farming.
在分析畜禽养殖对水环境污染的严重性后，提出厂防治畜禽养殖污染的对策措施。
Appraising pollution of livestock farming and poultry grazing land and its influence on water environmental quality.
评价了畜禽牧场污染及其对水环境质量的影响。
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