边界集 meaning in English

boundary sets

On the other hand , the level wise search algorithm is analyzed theoretically with level space theory based on partial order . several properties of level space are summarized and proved . the property of border theory and complexity conclusion of abstract level wise search model are also proved based on the above discuss
另一方面，本文以基于偏序关系的层次空间< l ， >为基础，对分层搜索算法进行深入的理论分析，总结并证明了层次空间的几个基本性质，并在此基础上对已有的边界集性质和抽象分层搜索模型的复杂度结论给出严格证明。