Excess air factor and volumetric heat release rate have little effect on the generation quantity of CO in flue gases.

过量空气系数与容积热负荷对烟气中CO生成量的影响不大。

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The effect of environmental air factor in the laying house on the productivity of layers in spring was studied in this paper.

本文研究了春季蛋鸡舍空气环境因素对伊莎蛋鸡生产性能的影响。

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In experiment, steady operating point of combustion can be obtained mainly by setting primary air factor and the size of spout.

在实验中，主要通过调整一次空气系数和引射器喷口的大小，达到稳定燃烧的运行工况。

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It says air quality is an important factor as well.

VOA: standard.2009.03.23

The Leeds University team believe air transmission could be a factor in some of this.

BBC: Fears over risk of air transmission of superbugs

But he said money and perks could not be the only motivating factor for an air force pilot.

BBC: NEWS | South Asia | India's air force 'needs to grow'

Fuller settled that case in 2005, saying there was an agreement that X-Factor would not air in the US until 2011 - and that he would be granted an executive producer credit if it aired after that date.

BBC: Simon Fuller settles US X Factor case