1.After twice removal, the concentrations of phosphate and ammonia nitrogen in the hogpen waste water can come up to the discharge standards.
猪场废水进行两级处理后，便可达到磷酸盐和氨氮的排放标准。
2.However, we find the condition of their workplace is quite disgusting, with flies circling and a hogpen nearby.
但是，我们发现他们的工作场所的卫生条件令人恶心，苍蝇飞来飞去，旁边就是一个猪圈。
3.The results have shown that steel slag and zeolite can remove effectively phosphate and ammonia nitrogen from hogpen waste water.
结果表明：钢渣对猪场废水中磷酸盐去除效果明显，沸石对猪场废水中氨氮有很好的去除效果；
4.Study on Flocculate-Precipitate Treatment of Wastewater in Hogpen
养猪场污水的混凝-沉降预处理研究
5.Diagnosis and prevention of infecting coccidiosis in the hogpen
仔猪感染等孢球虫病的诊断与防制
6.Diagnosis and Prevention of Edema Disease of Ablactated Pig in a Hogpen
某猪场断奶仔猪水肿病的诊断与免疫预防试验