Read Edit View history 点集合 diǎnjíhé point set Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 点集合/點集合 · diǎnjíhé · point set 2026/03/04 点集合 / 點集合 diǎnjíhé point set (math.) point set 拓扑空间可以看作是一个点集合。 created sense Mar 4, 2026, 02:25 AM