建议今后在温室自然通风量和室内有机基质CO_2生产量两个方面进行进一步的工作。
The following points are strongly suggested for nearly further considerations of the Greenhouse Engineers: CO2 caused by air exchanges and inner organic material-rich soil respiration.
在夏季，自然通风量减小，但汽车在冷启动与怠速情况下的污染物排放量远比冬季的小。
In summer the natural ventilation rates of buoyancy driven flow decrease, in the meantime the cold start and idle emissions of cars are significantly lower in summer than in winter.
由此可推出进、出口的流量系数不同，从而得到一种简单的估算自然通风量的计算方法。
From this, we can conclude that the discharge coefficients of the inlet opening and the outlet opening are different.
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