gradation for surface pollution

[gradation for surface pollution]
[gradation for surface pollution]

中文释义

污秽等级

单词分析

单词结构:

gradation for surface pollution

字母数:31

记忆提示

🎯 重点记忆:

  • 单词拼写:gradation for surface pollution
  • 核心含义:污秽等级