强间断法的重要特征是在连续的位移场中研究位移不连续的问题，通过在间断上引入附加应变来模拟间断。
The essential features of the method are to study displacement discontinuity problems in continuous displacement field and to simulate discontinuity by introducing enhanced assumed strain.
同时，多域边界元法也从细观力学的角度被用来探索这种不连续系统的平面应变问题。
In the point of view of meso - mechanics, the multi-zone boundary element method is used to analyze the behavior of the discontinuous system.
所提出的近似自适应变结构控制器可以避免控制器中的不连续继电项，同时不必已知系统不确定性范数界。
Then, the normal variable structure controller (VSC) and the adaptive variable structure controller with the estimation for the upper norms of uncertainties are presented.
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