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Descrição
通过机械原理证明数学问题。数学与机械的巧妙融合!生动形象的展示三角形内角和等于180度。益智玩具探索数学的奥妙。设计灵感来源于视频播放器下方的进度条。通过拖拽把手即可实现三角形变形成正方形,使复杂的数学证明题直观解释。

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