本文的基础理论研究对当前的螺杆泵的设计生产都有很好的指导作用，对当前三螺杆泵使用中出现的问题有很好的解决效果。
The theories established in this paper give directions to the current design and produce of the three screw pump; and also give solutions of the problems during usage.
本文的基础理论研究对当前的螺杆泵的设计生产都有很好的指导作用，对当前三螺杆泵使用中出现的问题有很好的解决效果。
The theories established in this paper give directions to the current design and produce of the three screw pump; and also give solutions of the problems during usage.
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