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REDUCTION OF COAL AND IIS FOR-MING CONDITIONS IN CONTINENTAL-COAL-B EARING FORMATION——WITH COAL SEAM 193，IN BANSHI,HUNCHUN AS A EXAMPLE
1990, 18(5): 1-8.
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RELATIONSHIP BETWEEN THE DEPOSITIONAL ENVIROMENTS AND THE THICKNESS OF COAL AND PROPTERIS OF COAL QUALITY OF COAL SEAM No15 IN THE EAST OF QINSHUI COAL-FIELD
1990, 18(5): 9-13.
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GENETIC DISTRIBUTION TYPES OF ASSOCIATED ELEMENTS IN LATE PERMIAN COAL SEAMS IN EASTERN YUNNAN PROVINCE AND GUIZHOU PROVINCE,CHINA
1990, 18(5): 13-17.
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THE APPLICATION OF MONTE-CARLO METHOD TO CALCULATION OF METHANE RESOURCES QUANTITY IN COAL SEAMS
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1990, 18(5): 24-28.
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INFRARED SPECTROSCOPY CHARACTERISTICS AND FORMING-HYDROCARBON EVALUATION RULE FOR SUBERAIN COAL IN SOURTHERN CHINA
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1990, 18(5): 29-36.
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THE APPLICATION OF RADIOISOTOPE TRACER TECHNIQUE TO SURVEY OF UNDERGROUND WATER IN COAL MINES
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1990, 18(5): 44-47.
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THE JBS-1 PORTABLE DIGITAL LOGGING STATION
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1990, 18(5): 51-60.
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QUESTIONS OF HOLE OFFSET IN THE SHALLOW COALFIELD SEISMIC EXPLORATION
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1990, 18(5): 60-66.
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