... pig-ironmixer生铁搅拌器 pig-keeping养猪 piglet猪苗 ...
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outdoor pig keeping system 户外养猪法 ; 草地养猪法
pig keeping 养猪
history of pig-keeping 养猪史
Keeping peanut pig casserole 养生花生猪手煲
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As a new and environmental pig-keeping technology, the method of biological fermentation bed was widely paid attention to domestically and abroad.
结合国内外的应用状况，笔者对生物发酵床养猪的技术原理及优缺点进行了探讨。
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The fan for keeping ventilation of the pig barn.
猪舍中保持通风的风扇。
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