protection standards

英 [protection standards]
美 [protection standards]

中文释义

防护标准

单词分析

单词结构：

protection standards

字母数：20

记忆提示

🎯 重点记忆：

  • 单词拼写：protection standards
  • 核心含义：防护标准

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更新时间：2025-12-30 08:00:47