音标:['reidɒn] ; 柯林斯词典等级:1 级;
n. 氡
[化] 氡Rn
n. a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
词型变化:名词复数形式 : radons
词性分布:
名词100%

radon的用法和样例:

例句

用作名词(n.)
  1. Radon is the daughter of radium.氡是镭的子体。
  2. Where does the indoor radon come from?室内氡气是从哪里而来?

词汇搭配

  • radon breath analysis呼吸中的氡含量分析...
  • radon gas氡气
【近义词】
  • Rn[化]元素氡的符号(=r...

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accredit
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Apart.
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ATCCCRT-1604
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awre
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back-to-back method
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bonded deposit
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brish
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bu-
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committee-men
CompuServe Information Service
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Katagon
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