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shi zhi 4jq7-804-120 xing quan shi shi shen jing qian shui dian beng
Pages: 68
Year: Issue:  6
Journal: Hydrogeology and Engineering Geology

Keyword:  深井结构简单扬程潜水电泵小口径钻孔水量充水式空压机大降深重新设计;
Abstract: <正> 在陕冶物探水文队科研的基础上,改进和重新设计了4JQ7-804-120型密闭充水式深井电泵。4JQ4—120型水量1升/秒,扬程120米,4JQ7—80型(水量2升/秒),扬程80米,能满足东北、西北等地区不同小水矿区深水位、大降深,小口径钻孔等情况。结构简单,合理紧凑,体积小;重量仅为空压机的1/15,适用于
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