So macroscopical damage mechanism of rock mass should research through its load and deformation law.
所以煤岩的宏观破坏机理应从其荷载以及变形规律来研究。
When the load is applied, some local area will yield elastic - plastic deformation.
在承受载荷时，其局部范围大多产生弹-塑性变形。
When the load is applied, some local area will yield elastic - plastic deformation.
在承受载荷时，其局部范围大多产生弹-塑性变形。
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