单词	opencast
释义	opencast /ˈəʊp(ə)nkɑːst / British adjective Denoting a method of mining in which coal or ore is extracted at or from a level near the earth’s surface, rather than from shafts: opencast mining... The two main methods of extraction are opencast mining and underground mining. Exploration for hydrocarbons has resulted in drilling to basement in many basins and, where coal seams occur close to the surface, opencast mining has exposed the strata. Residents are claiming victory today after controversial plans for opencast mining near three quiet Yorkshire villages were thrown out. noun [mass noun] The activity of opencast mining: communities facing the destruction of their countryside by opencast... Workers at the company's Westport's Stockton Mine, Huntly, the Ohai opencast in Southland and Rotowaro in the Waikato joined the strike. We are virtually surrounded by opencast and landfill with the promise of another 30 years of the same.
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