- free coal
-
• блестящий уголь с хорошим изломом• высококачественный битуминозный уголь• мягкий уголь• самоотбивающийся уголь
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Coal Creek War — A drawing from Harper s Weekly showing Coal Creek miners firing on Fort Anderson in 1892 … Wikipedia
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coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… … Universalium
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Free energy suppression — is a conspiracy theory that claims that advanced technology that would reshape current electrical generation methods is being suppressed by special interest groups. These groups are usually related to the oil industry, to whom current energy… … Wikipedia
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