用单纯形法求解线性规划问题的多最优解，对一类特殊的可行域，有时会导致失效。

Multiple optimal solutions to the linear programming problem by the simplex method for specific feasible regions sometimes might lead to a loss of efficiency.

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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.

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针对非视距环境下多站定位方法需要资源量大、成本高且定位精度受非视距传播影响大等问题，本文提出了单站定位的伪目标动态可行域约束法。

A location method aiming at suppressing NLOS errors in cellular networks using single observer is proposed, which is named by pseudo-target dynamic feasible region constraint method.

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