sound reduction index

英 [sound reduction index]
美 [sound reduction index]

中文释义

声衰减指数;隔声指数

单词分析

单词结构：

sound reduction index

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：sound reduction index
  • 核心含义：声衰减指数;隔声指数

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更新时间：2026-02-01 19:52:02