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How Coal is Formed
1:23
YouTubeMr Cognito
How Coal is Formed
Coal is a natural resource that has had a massive and profound impact on the development of our society. We dig it out of the ground in its black or gray state, but how did coal form? It took dead plants, heat and pressure, and millions of years Music: River of Io Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4 ...
已浏览 20.1万 次2022年6月23日
Coal Mining Documentary
Documentary on COAL: Mining, History and Future Outlook
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Documentary on COAL: Mining, History and Future Outlook
YouTubeCommodity Culture
已浏览 12.5万 次2021年5月18日
Coal Mining Documentary - The Most Dangerous Job On Earth - Classic History
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Coal Mining Documentary - The Most Dangerous Job On Earth - Classic History
YouTubeClassic History
已浏览 26.6万 次2017年11月9日
How Coal Is Mined and Refined - Top Coal Mining Spots in the World - Documentaries
44:00
How Coal Is Mined and Refined - Top Coal Mining Spots in the World - Documentaries
YouTubeDocumentaries
已浏览 10.6万 次2018年2月8日
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Where The Coal Comes From; How Coal Is Mined, Processed, And Shipped. (A Documentary)
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