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设计了一种新型摆线两螺杆泵，同现在普遍使用的摆线三螺杆果相比较，有单级接触线长度小，容积效率高，螺杆的抗弯刚度大，传动性能好等优点。
A new type of cycloidal two screw pump is designed. Compared with the commonly used three-screw cycloid screw, it has the advantages of small length of single-stage contact wire, high volumetric efficiency, large flexural rigidity of screw and good transmission performance.