1、

This paper analyses the advantages of down feed two pipe horizontal cascade system in all aspects and influencing degree by natural circulation pressure. The calculation results illustrate that there is almost no vertical heat maladjustment in down feed two pipe horizontal cascade system.

分析了下供下回水平双管系统的优点以及自然循环作用压力的影响程度,计算数据证明下供下回水平双管系统的垂直热力失调基本不存在;

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2、

Objective To evaluate the efficacy of positive pressure central air conditioner circulation system on the cleanliness of air in the treatment room.

目的了解正压中央空调换气方法保持治疗室空气洁净度效果。

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3、

Conclusion Positive pressure central air conditioner circulation system can keep the cleanliness of air in the treatment room, and routine air disinfection is not necessary.

结论正压中央空调换气系统在正常运行时能有效维持治疗室空气洁净度,且无需对室内进行常规空气消毒。

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4、

External components for the oil pump pressure lubrication oil lubrication system of forced circulation type.

外部零件润滑为油泵压力供油强制循环式润滑系统.

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