Okay, here is the translation following your instructions: Retreat Mining of Coal Seams with Steep Inclination: Theory and Practice

Author: Wang Weijun et al.
Publisher:
Publishing Date: 2001-12-01
Features: This book systematically summarizes the method and theoretical system of caving coal mining in steeply inclined coal seams. The content includes: the proposal of caving coal mining in steeply inclined coal seams, the crushing mechanism and movement law of top coal, field surrounding rock control, and the evaluation of top coal caving feasibility.

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