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原来是外表盘在转而指针不转,如果将外表盘固定,指针相对于外表盘顺逆方向刚好相反,i.e.,他描述的顺时针方向,指针其实转向逆时针,太恶心了!!!

Posted by Rieman at 2009-10-24 10:45:19 on Problem 2304


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