本文对降膜式蒸发设备中的热压泵就其理论计算过程及其设计注意事项作了比较详细的介绍，经长期使用效果良好。
In this article, the theoretical calculation and the design notices for the heat pumps used in the film evaporation equipment were introduced in detail.
在同样条件下，外开槽泵入式密封环的开启力和液膜刚度大于内开槽泵出式密封环的开启力和液膜刚度。
The opening force and film stiffness of the "pumping in" mechanical seal are greater than those of the "pumping out" mechanical seal under the same conditions.
在同样条件下，外开槽泵入式密封环的开启力和液膜刚度大于内开槽泵出式密封环的开启力和液膜刚度。
The opening force and film stiffness of the "pumping in" mechanical seal are greater than those of the "pumping out" mechanical seal under the same conditions.
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