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r=DB/2 theta=t*45 x=r*cos(theta)+r*sin(theta)*theta*pi/180 y=r*sin(theta)-r*cos(theta)*theta*pi/1 ... weihai1028 发表于 2009-12-9 21:39 登录/注册后可看大图
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weihai1028 发表于 2009-12-9 21:39 登录/注册后可看大图 r=DB/2 theta=t*45 x=r*cos(theta)+r*sin(theta)*theta*pi/180
weihai1028 发表于 2009-12-9 21:39 r=DB/2 theta=t*45 x=r*cos(theta)+r*sin(theta)*theta*pi/180
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