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radon

US [ˈreɪdɑn]
UK [ˈreɪdɒn]
  • n.氡(放射性化学元素)
  • Web氡气;镭射气;拉东
radon
n.
1.
氡(放射性化学元素)a chemical element. Radon is a radioactive gas used in the treatment of diseases such as cancer.

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