氡 (dōng) — radon (chemical element Rn)

Définition

Exemples

• 这种建筑材料里含有大量氡。
  Zhè zhǒng jiàn zhù cái liào lǐ hán yǒu dà liàng dōng.
  This building material contains a large amount of radon.
• 你最好请专业人员来检测家里的氡含量。
  Nǐ zuì hǎo qǐng zhuān yè rén yuán lái jiǎn cè jiā lǐ de dōng hán liàng.
  You'd better ask professionals to measure the radon level in your home.
• 长期暴露在高浓度的氡下会增加患癌风险。
  Cháng qī bào lù zài gāo nóng dù de dōng xià huì zēng jiā huàn ái fēng xiǎn.
  Long-term exposure to high concentrations of radon increases the risk of developing cancer.