Opencast mining
volume
British pronunciation/ˈəʊpənkˌast mˈaɪnɪŋ/
American pronunciation/ˈoʊpənkˌæst mˈaɪnɪŋ/

"opencast mining"کی تعریف اور معنی

Opencast mining
01

the mining of ore or coal from an open mine

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