sound insulation class

英 [sound insulation class]
美 [sound insulation class]

中文释义

隔声等级

单词分析

单词结构：

sound insulation class

字母数：22

记忆提示

🎯 重点记忆：

  • 单词拼写：sound insulation class
  • 核心含义：隔声等级

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更新时间：2026-01-30 00:01:35