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原帖由 joseflin 于 2008-2-14 12:29 发表 http://www.3dportal.cn/discuz/images/common/back.gif ) _' k9 m4 ]: c0 [8 h: H1. a 之直徑值為何? 3 d' M8 k5 E. E! D& ^* x, ^ z! L (A) 21.9224 (B) 21.8242 (C) 21.94225 M& M! R8 ~: k# u) p' f0 k6 J 2. b 之長度為何? 8 X1 h! y k; i6 m5 }. @8 H% [ (A) 60.9126 (B) 60.9216 (C) 60.9612
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