无烟煤 (wú yān méi) — 무연탄

뜻

예문

• 这种无烟煤燃烧时几乎没有烟。
  Zhè zhǒng wú yān méi rán shāo shí jī hū méi yǒu yān.
  This kind of anthracite produces almost no smoke when burned.
• 工厂改用无烟煤来减少污染。
  Gōng chǎng gǎi yòng wú yān méi lái jiǎn shǎo wū rǎn.
  The factory switched to anthracite to reduce pollution.
• 无烟煤的热值比普通煤高得多。
  wú yān méi De rè zhí bǐ pǔ tōng méi gāo dé duō.
  Anthracite has a much higher calorific value than ordinary coal.