| 单词 | surface mine |
| 释义 | > as lemmassurface mine (b) Chiefly Mining. With the sense ‘occurring or taking place at or near the surface, as opposed to underground’, as , surface cut, surface mine, surface mining, surface ore, surface working, surface works, etc.See also surface damage n. at Compounds 3. ΚΠ 1830 Boston Transcript 15 Dec. 2/3 The surface mines, which are of very inferior importance, require no other labour than that necessary in washing the earth in rockers, or large inclined troughs with mercury. 1839 H. T. De la Beche Rep. Geol. Cornwall xv. 564 There are few regularly-planned surface-works. 1877 R. W. Raymond Statistics Mines & Mining 215 Little work..has been done except surface-cuts and holes dug to trace the lode. 1937 Mineral. Mag. 24 508 The surface workings expose ochreous shales. 1982 Jrnl. Lat. Amer. Stud. 14 392 After only two years of mining surface ore, the company discovered that the mines' wealth did not go deeper. 2009 Private Eye 18 Sept. 30/3 An American coal producer based in Richmond..uses heavily destructive surface-mining practices such as mountain-top removal. < as lemmas |
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