degenerate condition meaning in Chinese

简并条件
退化状态

It uses properties of motional surface to find the ttp , and proposes an optimized motional ssi algorithm . the algorithm also can reduce computation time and overcome the degenerate conditions
在分析以往雕塑实体模型数据结构的基础上，本文给出了一个运动雕塑实体布尔操作算法，在保证鲁棒性和精确性的同时确保高效率是算法的目标。
According the topology of intersect curve , it dynamically adjust the local tracing strategy to reduce the ssi computation time . it can overcome the degenerate conditions such as loop leaking and singularities . based on offset ssi algorithm , the dissertation pay emphases on motional ssi problem
算法通过在曲面交线拓扑信息的指导下，确定交线分支初始点的求取策略，根据交线环拓扑结构，动态调整交线环的局部搜索策略，从而提高了交线环求解的演化效率。
Finally , degree reduction of interval rational triangular b - b surfaces is discussed . the problem is also converted to degree reduction of bi - variable polynomials with upper bound . according to degenerating conditions of triangular b - b surfaces , an optimization model is constructed and optimal solutions under certain constrains are calculated
先将该问题转化为双变量多项式的限制上界的降阶问题，然后采用最优化方法，结合三角b - b曲面的退化条件，建立约束优化模型，求出约束意义下的最优解。