This paper mainly Outlines the new progress made in plate motion, lithostatic stress field, fault mechanics, active structure and long-term earthquake prediction.
文章主要对板块运动、岩石圈应力场、断层力学、活动构造、长期地震预测方面的新进展做了概略介绍。
On the basis of rock mass mechanics model of cracking plate structure, it derived the calculation equation for the equivalent exposed area of mine stope.
它以板裂结构的岩体力学模型为基础，推导出了采场当量暴露面积的计算公式。
On engine cases, installation base can be simplified by a mechanics model, which is case shell with hole and a complex of enclosing wall and reinforcing plate for increase strength.
发动机机匣上安装凸台结构，可简化为机匣壳体开孔后用围壁和加强板组合补强的力学模型。
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