Meanwhile, axial-flow fan has superiority in decreasing humidity, reducing ventilation cost and increasing ventilation efficiency and so on.

轴流风机通风降温在减少水分丢失、降低通风费用、提高通风效率等方面更能体现其优越性。

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In order to improve the efficiency and prolong the life of the fan, it is necessary to command the gas and solid two phase flow pattern master in the fan.

为了提高风机效率、延长风机寿命，所以掌握风机内部气、固两相流动规律是十分必要的。

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In large warehouse, a control test of lowering temperature with exhaust fan and other equipment in lowering temperature, ventilating efficiency, air flow rate and moisture content was carried out.

用排气扇与各种通风方式对高大平房仓进行降温对比试验，将试验仓与对比仓的降温情况、通风效率、表观风速和水分变化进行比较。

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