air quality standards

英 [air quality standards]
美 [air quality standards]

中文释义

空气质量标准

单词分析

单词结构：

air quality standards

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：air quality standards
  • 核心含义：空气质量标准

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更新时间：2026-03-20 12:31:13