$"6.()$

$))$

$)$ Quadtree $)$ Octree $$

$7.()$

$)$ Computer$-$aided design $($CAD$)$ b$)$ Computer$-$aided manufacturing $($CAM$)$

$)$ Computer$-$aided process planning $($CAPP$))$

$8.$ CAD$/$CAM $()$

$)$ CAD$/$CAM $$

b$)$ WU$10$

$)$ CAM $$

$)$ CAD$/$CAM $"$