You could reshape a donut into a coffee cup and it would still have just one. That topological property is stable.
你可以把一个甜甜圈重塑为一只咖啡杯,它仍旧只会有一个洞。这种拓扑学属性是稳定的。
词典释义:
拓扑性质
You could reshape a donut into a coffee cup and it would still have just one. That topological property is stable.
你可以把一个甜甜圈重塑为一只咖啡杯,它仍旧只会有一个洞。这种拓扑学属性是稳定的。
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