Self suction pump is used for the first time, need to add water, then don't need to add water.
自吸式水泵第一次使用时，需要加引水，以后则不必再加引水。
Wine pump, self suction pump, axial flow pump, starch pump, high temperature concentrated slurry pump, detachable piping pump, valve fittings etc.
酒泵，自吸泵，轴流泵，淀粉泵，高温浓浆泵，便拆式管道泵，泵阀配件等。
By applying the proposed mathematical model, the scale-up method of the self-suction reactor was discussed.
应用所提出的数学模型，对自吸气环流反应器的放大方法进行了讨论。
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