5 min
Coal formation Earth's physical resources: extracting coal and oil - for iPod/iPhone
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- Courses
Designing a system of mining to suit the split seams in the Northumberland coal field. Analysing the small detail reveals how it was formed.
Designing a system of mining to suit the split seams in the Northumberland coal field. Analysing the small detail reveals how it was formed.
5 min
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