讨论了满足开集条件的自相似集。
The self-similar sets satisfying the open condition have been studied.
据天气预报说，开集的每一天都可能会下雨。
A chance of rain has been forecast every day during the fair.
在点集拓扑理论中，开集、域等是最基本的概念。
In point set topological theory, open set and neighborhood are the basic concept.
集设计、开模、生产、加工、服务于一体。
集设计、开模、生产、加工、服务于一体。
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