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difficult coal造句

"difficult coal"是什么意思   

例句与造句

  1. Japanese mining experts will help Australia develop more efficient ways to mine difficult coal deposits in its south-east, the New South Wales state government said Wednesday.
  2. State Premier Bob Carr said the Department of Mineral Resources would join Japan's New Energy and Industrial Technology Development Corporation ( NEDC ) in a three-year, dlrs US 12 million ( dlrs Australian 15 million ) joint venture to find safer and more economic ways to mine difficult coal deposits in the Hunter and Gunnedah regions.
  3. It's difficult to find difficult coal in a sentence. 用difficult coal造句挺难的

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Last modified time:Mon, 11 Aug 2025 00:29:56 GMT