氰 (qíng) — cyanogen (a toxic gas, C₂N₂)

定義

例文

• 氰是一种无色而有毒的气体。
  qíng Shì yì zhǒng wú sè ér yǒu dú de qì tǐ.
  Cyanogen is a colorless and toxic gas.
• 在实验室中使用氰时必须戴好防护面具。
  Zài shí yàn shì zhōng shǐ yòng qíng shí bì xū dài hǎo fáng hù miàn jù.
  You must wear a full-face respirator when handling cyanogen in the lab.
• 氰在高温条件下会分解成有毒的氰化物。
  qíng Zài gāo wēn tiáo jiàn xià huì fēn jiě chéng yǒu dú de qíng huà wù.
  Cyanogen decomposes into toxic cyanides under high temperature conditions.