room mean age of air 室内平均空气龄
The analysis of the two air quality parameters-PMV and mean age of air-indicates that the air quality in the occupied zone is good enough to satisfy the sanitary requirement of people .
对两个表征空气质量的参数的分析表明，在人员活动区内，空气质量较好，满足人员活动的卫生要求。
The air quality is reflected by CO2 concentration and air age. The thermal comfort evaluation in the cabin is on the basis of PMV-PPD (Predicted Mean Vote-Predicted Percentage of Dissatisfied people).
以CO2浓度和空气龄反映客舱内空气品质，PM V - PPD作为客舱内热舒适评价依据。
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