topological theory of defects 缺陷的拓扑理论
At low temperatures, due to the lack of sufficient thermal energy for activating large amount of topological defects, CNTs primarily show brittle fracture behavior.
而低温拉伸由于缺乏足够的能量使得大量缺陷产生，碳纳米管主要表现为脆性断裂。
In this paper the application of homotopy equivalence transformation of topological space sets to the topological classification of states and defects in ordered media is discussed.
该文论述了拓扑空间(组)的同伦等价变换在有序介质状态和缺陷的拓扑分类中的应用问题。
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