首先对煤矿地质条件进行分类，采用连续介质力学理论，探讨条带开采的合理条带煤柱尺寸。
The coal mine's geological conditions are classified, and the rational sizes of strip coal pillars in strip mining are discussed using the theory of continuous medium mechanics.
从非局部连续介质理论出发，采用一种新的理性力学方法对裂纹前缘内聚应力分布规律进行研究。
Starting with the nonlocal continuum theory, a new rational mechanics method is applied to study logically the cohesive stress law of ahead of a crack tip.
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