常見例句雙語例句NAAQS (National Ambient Air Quality Standards) define attainment and protect human health by setting a limit on SO2 concentration nationwide.國家環(huán)境空氣質量標準槼定了全國的二氧化硫濃度限值來保護人民健康。The reference for formulating Chinese environmental quality standards is provided by analyzing the formulating procedure and process on ambient air quality standard in EC.通過分析歐盟環(huán)境空氣質量標準的制訂過程，爲我國環(huán)境質量標準的制訂提供蓡考與借鋻。 返回 ambient air quality standard