浮动叶轮结构设计，降低了电机启动及运行负载。
With the floating impeller structure design, bring down the motor start and running load.
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.
设计结构：浮动式、固定式。
设计结构：浮动式、固定式。
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