讀音

汉语拼音:dōng

名詞

放射性氣體元素的一種,其英文縮寫是Rn,詳細資料請參閱維基百科有關氡的資料。


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"氡." Definitions.net. STANDS4 LLC, 2025. Web. 16 Jan. 2025. <https://chinese.definitions.net/def/ZH/%E6%B0%A1>.

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