地方水事：沈阳农业大学水土保持专业师生来海城市调研

Source：http://www.datianshuigong.com/html/7391652256.htmlDatetime：2015-06-11

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  in haicheng magnesium refractory materials plant, factory officials and technicians to mining status, North dump restoration, made a detailed introduction, students enthusiastically collected pictures,undefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefined-width:0px ">, screw-type hoists, cast iron gates,