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  • Glossary of Mining Terms - rocksandminerals

    Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch ...

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  • Glossary of Mining Terms - Coal Education

    A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch ...

  • Cement Kilns: Southam

    In this the stone and clay are broken up into small pieces and delivered on to a rubber band conveyor, which, in its turn, delivers the broken pieces into the feeding ...

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    Grateful for your donation! Recent Posts. Iron Carbide; Competencies and development of competency framework for organization