“surface mining”的概念、定义、翻译、参考文献-科学参考

单词	surface mining
释义	surface mining [`sǝr·fǝs ´mīn·iŋ] ^{MINING ENGINEERING} Mining at or near the surface; includes placer mining, mining in open glory-hole or milling pits, mining and removing ore from opencuts by hand or with mechanical excavating and transportation equipment, and the removal of capping or overburden to uncover the ores.
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