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ppbv
ppbv
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[ppbv]
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[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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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:2026-03-28 02:26:20