| 单词 | coal extraction | 
| 释义 | coal extraction Had the same caution been applied to coal extraction — which was far closer to the surface and caused far more seismic problems — we could have never had an industrial revolution. Times, Sunday Times The gap has been taken up by large increases in subbituminous coal extraction. Retrieved from Wikipedia CC BY-SA 3.0  The colliery spoil tips were removed and landscaped and after much opencast coal extraction the area regained its traditional rural appeal from the 1970s onward. Retrieved from Wikipedia CC BY-SA 3.0  The estimates for global peak coal extraction vary wildly. Retrieved from Wikipedia CC BY-SA 3.0  Bituminous coal extraction has also been declining since 1990. Retrieved from Wikipedia CC BY-SA 3.0  | 
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