NRN (noise rating number)

英 [NRN (noise rating number)]
美 [NRN (noise rating number)]

中文释义

声分级值，NR数

单词分析

单词结构：

NRN (noise rating number)

字母数：25

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🎯 重点记忆：

  • 单词拼写：NRN (noise rating number)
  • 核心含义：声分级值，NR数

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更新时间：2025-12-11 04:08:05