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Coal mining Wikipedia. Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely ...
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Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity.
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Coal Mining Technologies. Coal mining employs surface and underground methods to extract coal. Giant machines are used to remove the top layers of soil and rock to ...
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Coal is used as a traditional fuel source as well as in the generation of electricity. Coal mining equipment has been modified and refurbished with fabricated .