ppbv

英 [ppbv]
美 [ppbv]

中文释义

abbr. parts per billion by volume 十亿分体积比

单词分析

单词结构：

ppbv

字母数：4

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🎯 重点记忆：

  • 单词拼写：ppbv
  • 核心含义：abbr. parts per billion by volume 十亿分体积比

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更新时间：2025-12-25 00:55:18