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空气中氧气和氢气的比例是多少

更新时间: 2020-09-25 00:00:00     

氧气约占空气的21%,氮气78%,稀有气体0.94%,二氧化碳0.03%,水蒸气和杂质气体0.03%。至于你说的氢气是微乎其微的,包括在水蒸气与杂志气体一项中。

关键词: 空气 氧气 氢气 比例 多少

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