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DISTANCE.rar (147.85 KB)
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2012-8-22 01:19
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8# Jan Yes, the value of the point applies not only to a segment but also to a ray, parabola, circle, polygon,etc. 29678417 发表于 2012-8-23 15:17
16# xuefeiyang 18470 随便画了个轨迹,可以度量点值 29678417 发表于 2012-8-23 22:12