Yingqing Guo
Abstract
The coal characteristics and change law of workable coal seam in Mayidong mine field was systematic analyzed according to a great deal of basic coal quality data,and the direction of coal utilization was pointed out in this paper.
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The coal characteristics and change law of workable coal seam in Mayidong mine field was systematic analyzed according to a great deal of basic coal quality data,and the direction of coal utilization was pointed out in this paper.
Key concepts: Coal, Coal mining, Mining engineering, Coal field, Field (mathematics), Engineering, Petroleum engineering, Quality (philosophy)