fixed pump installation 固定水泵装置
fixed displacement pump 定量泵 ; 固定排量泵
fixed stroke pump 固定冲程泵 ; 定行程泵
fixed pump station 固定泵站
fixed axial clearance gear pump 恒定轴向间隙齿轮泵
fixed delivery pump 定量泵 ; 定容量泵
fixed casing pump 套管型固定式井下泵
fixed displacement gear pump 固定排量齿轮泵
fixed displacement vane pump 固定排量叶片泵
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