- washout of coal seam
- 煤层冲刷
English-Chinese geology dictionary (英汉地质大词典). 2013.
washout of coal seam
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Problems in coal mining — Coal mining cannot be done everywhere with coal, due to certain restrictions.ProblemsDip of strataDue to current machinery, a permament feedback is required.FaultingIf a fault hits a rock with a coal seam inside, the coal seam moves. Machinery… … Wikipedia
Pleasley Colliery — is a former English coal mine. It is located to the NW of Pleasley village which sits astride the River Meden on the Nottinghamshire/Derbyshire border. HistoryTimelineIt was sunk in the 1870s and produced coal until 1983. By some miracle it… … Wikipedia
