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opencast

adjective
🔊/ˈəʊpənkɑːst/
🔊/ˈəʊpənkæst/
(British English)
(North American English open-pit)
[usually before noun]
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  1. in opencast mines coal is taken directly out of the ground near the surface, without digging tunnels 露天开采的
    • opencast mines/mining露天矿山 [采矿]
    see also strip mining
    Oxford Collocations DictionaryOpencast is used with these nouns:
    • coal
    • mine
    See full entry