证明空气中有稀有气体证明空气中氦、氖、氩、氪、氙、氡等6种气体
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![证明空气中有稀有气体证明空气中氦、氖、氩、氪、氙、氡等6种气体](/uploads/image/z/4046932-28-2.jpg?t=%E8%AF%81%E6%98%8E%E7%A9%BA%E6%B0%94%E4%B8%AD%E6%9C%89%E7%A8%80%E6%9C%89%E6%B0%94%E4%BD%93%E8%AF%81%E6%98%8E%E7%A9%BA%E6%B0%94%E4%B8%AD%E6%B0%A6%E3%80%81%E6%B0%96%E3%80%81%E6%B0%A9%E3%80%81%E6%B0%AA%E3%80%81%E6%B0%99%E3%80%81%E6%B0%A1%E7%AD%896%E7%A7%8D%E6%B0%94%E4%BD%93)
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