[mass noun](Mathematics)the study of geometrical properties and spatial relations unaffected by the continuous change of shape or size of figures (数)拓扑学 ■[count noun]a family of open subsets of an abstract space such that the union and the intersection of any two of them are members of the family, and which includes the space itself and the empty set 拓扑
the way in which constituent parts are interrelated or arranged 结构,构造 the topology of a computer network. 计算机网络结构。