| 单词 | open-pit mining | 
| 释义 | open-pit mining in American English (ˈoʊpənˌpɪt)  a method of mining, usually for metallic ores, in which the waste and ore are completely removed from the sides and bottom of a pit which gradually becomes an enormous canyonlike hole   see also   strip mining Examples of 'open-pit mining' in a sentence | 
	
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