2022年2月5日
摘要: In mathematics, an axis is a designator for a Cartesian-coordinate [笛卡尔坐标系] dimension. Rotation around a fixed axis is typically taught in introductor 阅读全文
posted @ 2022-02-05 20:25 华容道专家 阅读(85) 评论(0) 推荐(0)