The pressure was then suddenly released in order to find out the critical condition of failure under the combined effect of confining pressure and pore pressure.
在轴对称的实验装置上，对上下施加侧压的中心开孔的含瓦斯煤饼，将孔内压力突然降至大气压，求得煤样在侧压和瓦斯压力联合作用下的临界破坏条件。
The pressure was then suddenly released in order to find out the critical condition of failure under the combined effect of confining pressure and pore pressure.
在轴对称的实验装置上，对上下施加侧压的中心开孔的含瓦斯煤饼，将孔内压力突然降至大气压，求得煤样在侧压和瓦斯压力联合作用下的临界破坏条件。
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