看下這個 by*v($
EDGES !! or CURVE g7O,
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R=5 !! Vertex radius of curvature $##LSTA
K=-1 !! Conic constant "J*LR
H=5 !! Outer aperture height cBDOA<]r,
O=0 !! Inner obscuration height *FC26_pH
CONIC X 0, 0 0 -2*R 1 0 K+1, Y (O) (H) !!構建拋物線 b*dEX%H8sf
SHIFT Y 1 !!偏移 3TF'[(K=
SWEEP AXIS 360 Z !!旋轉