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单词 opencast mining
释义

Collins Concise English Dictionary © HarperCollins Publishers::
opencast mining /ˈəʊpənˌkɑːst/ n
  1. Brit mining by excavating from the surface
    Also called: (esp US) strip mining, (Austral. and NZ) open-cut mining
Etymology: 18th Century: from open + archaic cast ditch or cutting
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更新时间:2025/7/23 19:05:44