tattle
发表于 2025-3-30 09:26:53
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偶像
发表于 2025-3-30 13:43:38
Diagrams in the Mind?lain why this is a problem with hidden depths, since our grasp of spatial structure is inherently a grasp of a complex range of possibilities and their implications. Two classes of examples discussed at length illustrate requirements for human visualisation capabilities. One is the problem of removi