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Opencast mining
/ˈəʊpənkˌast mˈaɪnɪŋ/
/ˈoʊpənkˌæst mˈaɪnɪŋ/Opencast mining
01
the mining of ore or coal from an open mine
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/ˈəʊpənkˌast mˈaɪnɪŋ//ˈoʊpənkˌæst mˈaɪnɪŋ/
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Tìm kiếm
/ˈəʊpənkˌast mˈaɪnɪŋ//ˈoʊpənkˌæst mˈaɪnɪŋ/the mining of ore or coal from an open mine