... 环境空气 ambient air 环境空气标准 ambient air standard 环境空气动力学 environmental aerodynamics ...
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环境空气质量标准 environmental and air quality standards ; air quality standards ; ambient air quality ; [环境] ambient air quality standard
国家环境空气质量标准 NAAQS ; National Ambient Air Quality Standard ; National Ambient Air Quality Standards
全国环境空气质量标准 National Ambient Air Quality Standards ; NAAQS
环境空气品质标准 ambient air quality standard
人居环境空气质量标准 residential ambient air quality standard
根据环境保护部对全国338个城市的调查，2016年，只有四分之一的中国城市达到了国家的空气质量标准。
In 2016, only one fourth of Chinese cities met the country's air quality standards, according to a survey of 338 cities nationwide from the Ministry of Environmental Protection.
全县通过ISO 14001环境管理体系认证，空气质量好于二级以上标准的天数超过330天。
County through the ISO14001 environmental management system certification, the air quality standards in more than two days over 330 days.
重点城市的空气和地面水达到国家规定的环境质量标准。
Air and surface water quality in major cities should meet both national and environmental quality standards.
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