fully mechanized
fully mechanized
fully mechanized
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Roof Management Technology on Fully-mechanized Working Face under Complicated Conditions in the Bottom Slicing
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Preliminary Probe into the Law of Overburden Destruction in Fully-mechanized Coal Mining with Caving of Roof Coal in Kangping Coalfield
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Dealing with the Spontaneous Combustion of Fully Mechanized Face Gob Areas by Way of the Comprehensive Prevention and Elimination Technology