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hard coal是什么意思，hard coal的翻译，hard coal音标、读音、用法和例句_食材铺反向词典
食材铺反向词典

hard coal

H 开头单词

同根派生

     

英汉例句

  • Soft coal burns with more flames than hard coal.
    烟煤燃烧时火焰较无烟煤多。
  • We also supply blind coal and soft coal from China and Indonesia.
    煤炭产品主要是无烟煤与有烟煤等。