根据MHD气球模稳定性理论，计算了负磁剪切位形中等离子体气球边缘稳定性区域。
Based on MHD ballooning mode stability theory, marginal stability regions of the plasma ballooning mode in negative magnetic shear configuration are calculated in this paper.
作者从断裂力学观点研究了圆盘形纯剪切破裂产生的远场位移，导出了远场位移的解析表达式。
From the point of view of fracture mechanics, we studied the far displacement field produced by a disk-shaped pure shear fracture and obtained an analytic expression for that field.
下盘发育平行于主变形带的小型韧性剪切带，上盘发育一系列铲形脆韧性断裂系。
A series of small shear zones, which are parallel to the main deformation belt, are formed in the foot wall, while in the hanging wall ductile brittle normal faults are popular.
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