“National Primary Ambient Air Quality Standards”概念、定义、翻译-科学时代

单词	National Primary Ambient Air Quality Standards
释义	市政工程词汇手册 National Primary Ambient Air Quality Standards （美国）一级环境空气质量国家标准
随便看	bush vetch bush warfare bush wetland bushy business business business business business business accounting business accounting business accounting business administration business administration business administration business administration business administration education business advertising Business Advisory Council business affiliation business affiliation business agent business agent business airplane business analysis

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

National Primary Ambient Air Quality Standards