浮动螺旋结构可自动适应密封压力，自动补偿螺旋磨损，自动适应泵轴串动；
The floating spiral structure is designed to automatically adapt the sealing pressure, to compensate automatically spiral wear and adapt shaft play.
原泵轴封采用浮动环形式的密封结构，密封稳定性较差。
Original shaft with floating ring seal forms a sealed structure, sealed and is less stable.
原泵轴封采用浮动环形式的密封结构，密封稳定性较差。
Original shaft with floating ring seal forms a sealed structure, sealed and is less stable.
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