无烟 (wú yān) — smoke-free (no smoking allowed); smokeless (producing little or no smoke)

Définition

Exemples

• 这家餐厅是无烟餐厅，请勿吸烟。
  Zhè jiā cān tīng shì wú yān cān tīng, qǐng wù xī yān.
  This restaurant is a smoke-free restaurant; please do not smoke.
• 无烟煤燃烧时产生的有害气体很少。
  wú yān Méi rán shāo shí chǎn shēng de yǒu hài qì tǐ hěn shǎo.
  Smokeless coal produces very little harmful gas when burned.
• 很多公共场所都设立了无烟区。
  Hěn duō gōng gòng chǎng suǒ dōu shè lì le wú yān qū.
  Many public places have set up smoke-free zones.