用一辆车取代四辆，你积极地减少了空气污染，提高了室外空气质量。
You actively reduce air pollution, increase outdoor air quality by having 1 car on the road instead of 4.
你不仅可以在燃料和汽车日常保养费上省下钱，也对改善室外空气质量和降低道路拥堵起了很大的作用。
Not only will you save money on fuel and the general upkeep of car but other knock on effects include the improved outdoor air quality and reduction on road congestion.
这些将以现有的世卫组织室外空气质量指南以及最近出版的世卫组织关于特定室内污染物水平的指导意见为基础。
These build upon existing WHO outdoor air quality guidelines and recently published WHO guidance on levels of specific indoor pollutants.
除了指导值之外，空气质量准则也为有关室外空气污染的每项空气污染物提出了过渡目标，以便促进逐渐从高浓度向低浓度过渡。
In addition to guideline values, the AQGs give interim targets related to outdoor air pollution, for each air pollutant, aimed at promoting a gradual shift from high to lower concentrations.
要始终着眼于风险评估。例如，降低室外新风量或许可以节能，但是没有人愿意去制造室内空气质量的麻烦！
Always assess the risks. Example, reducing outside air may save energy, but no one wants to create an indoor air quality problem!
空气质量指数高的日子应限制室外活动，尽量待在室内。
It's encouraged on these high level days to limit your outdoor activities and stay indoors.
利用数值模拟方法，研究了单个建筑物外存在点污染源时室外空气污染对室内空气质量的影响。
The impact of outdoor air pollution on the indoor air quality by the way of numerical simulation was studied.
新风系统将室外的新鲜空气和室内的空气进行交换，保证室内的通气，改善房间的空气质量。
The fresh air system can exchange the outdoor and indoor air, ensure that the indoor air ventilation to improve room air quality.
新风系统将室外的新鲜空气和室内的空气进行交换，保证室内的通气，改善房间的空气质量。
The fresh air system can exchange the outdoor and indoor air, ensure that the indoor air ventilation to improve room air quality.
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