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Digging For Hope: Inside An Ohio Coal Mine Digging For Hope: Inside An Ohio Coal Mine
Views : 1.175.085    от : TheColumbusDispatch.
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Coal 101 Coal 101
Views : 165.311    от : Student Energy.
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Coal Mines Coal Mines
Views : 70.045    от : History Of Technology.
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Coal Mining's Environmental Impact | From The Ashes Coal Mining's Environmental Impact | From The Ashes
Views : 107.893    от : National Geographic.
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Principles Of Longwall Mining Principles Of Longwall Mining
Views : 97.695    от : Wyoming Machinery Company.
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How Do They Do It__ Coal Mining Video.flv How Do They Do It__ Coal Mining Video.flv
Views : 651.288    от : Dhiraj Patil.
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Coal Miners In Eastern Ohio Share How Their Jobs Support Their Families And Community, And The... Coal Miners In Eastern Ohio Share How Their Jobs Support Their Families And Community, And The...
Views : 931    от : TheColumbusDispatch.
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How Coal Is Mined And Refined - Top Coal Mining Spots In The World - Documentaries How Coal Is Mined And Refined - Top Coal Mining Spots In The World - Documentaries
Views : 26.836    от : Documentaries.
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HowStuffWorks - Ore To Steel HowStuffWorks - Ore To Steel
Views : 297.686    от : Discovery.
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Coal 101: What's Wrong With Coal? Coal 101: What's Wrong With Coal?
Views : 148.174    от : NationalSierraClub.
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How Things Work : How Is Iron Mined? How Things Work : How Is Iron Mined?
Views : 28.050    от : EHow.
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HowStuffWorks - Dry Salt Mining HowStuffWorks - Dry Salt Mining
Views : 178.840    от : Discovery.
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COAL: The Documentary COAL: The Documentary
Views : 194.846    от : EarthFixMedia.
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World's Biggest Mine: Inside US Coal World's Biggest Mine: Inside US Coal
Views : 225.179    от : The Guardian.
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15 Things You Didn't Know About The Mining Industry 15 Things You Didn't Know About The Mining Industry
Views : 29.057    от : Alux.com.
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How Do They Mine Diamonds? How Do They Mine Diamonds?
Views : 1.573.971    от : Science Channel.
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Stuff You Should Know - How Underground Mining Works Stuff You Should Know - How Underground Mining Works
Views : 968    от : Stuff You Should Know Podcast Fan.
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Alexandria Ocasio-Cortez Calls Republican's Coal Miner Bluff | NowThis Alexandria Ocasio-Cortez Calls Republican's Coal Miner Bluff | NowThis
Views : 467.911    от : NowThis News.
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A Career In Coal Mining (JTJS22008) A Career In Coal Mining (JTJS22008)
Views : 59.746    от : Just The Job.
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Wheel Bucket Excavators Working At Coal Mines Wheel Bucket Excavators Working At Coal Mines
Views : 36.443    от : Mega Machines Channel.
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