泵必须是低剪切力的阿基米德螺旋式泵。
介绍了螺旋式离心泵的基本结构和原理，对新产品设计过程中需要解决的技术问题进行了总结。
The general configuration and theory of the spiral centrifugal pulp pump were introduced. The key technologies of the new product design were summarized.
螺旋式罗茨泵在稳定过流剪切敏感介质压力脉动质量，减少噪音、振动，避免气蚀等方面有较大改善。
Helical Roots pump has great improvements on the face of stabilizing pressure pulse quality of passing cut sensitivity medium, reducing noises and vibration, avoiding vapor fret etc.
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