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5 results on '"Zhang, Ningbo"'

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1. Fractal characteristics of overburden fissures in shallow thick coal seam mining in loess gully areas.

2. Study on the air leakage characteristics of a goaf in a shallow coal seam and spontaneous combustion prevention and control strategies for residual coal.

3. Precise detection of coal and gangue based on natural γ-ray.

4. Application of Comprehensive Geophysical Prospecting Method in Water Accumulation Exploration of Multilayer Goaf in Integrated Mine.

5. Mechanism of Coal Bump among Mine Group under the Control of Large Geological Body: A Case Study of Yima Mining Area, China.

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