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Study on Tonstein within Coal Seam C8 of Upper Permian in Southern Sichuan
1987, 15(5): 1-8.
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Sulfur Isotope Composition and its Origin in Coal Seams
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1987, 15(5): 8-14.
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On the Relationship between the Lianshan Member and the Qixia Limestone
1987, 15(5): 21-22.
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Some Major Ratios of Costs in Coal Geoe-xploration
1987, 15(5): 25-28.
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Assessment of Mine in Kaiping Coalfield and Discussion on Method of Hydrogeological Exploration
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1987, 15(5): 31-35.
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The Effect of Aquifer in Quaternary lcwer Part on water Inflow of Mine in Yanzhou Coalfield
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1987, 15(5): 36-38.
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Walsh Transform to the Application of Auto-Division of Coal Seam Boundary in Logging
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1987, 15(5): 40-44.
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SMK-4 Type Doubletube-Swivel Core Barrel
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1987, 15(5): 53-56.
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