“一级环境空气质量国家标准”概念、定义、翻译-科学时代

单词	一级环境空气质量国家标准
释义	请查阅一级环境空气质量国家标准--（美国）一级环境空气质量国家标准
随便看	regional sociology regional specialization regional specialization regional strain regional strike regional study regional survey regional synthesis regional synthesis regional system regional theatre regional tour regional tourist organization regional trading arrangement regional trading arrangement--regional trading arrangement (RTA) regional trading arrangement (RTA) regional trading bloc regional tutorial services regional variation regional vegetation regional wage bargaining regional wage structure regional war regional warehouse regional water balance

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。