Array ( [0] => Array ( [title] => L4A [link] => https://www.youtube.com/embed/Bsr-RQk2uik ) [1] => Array ( [title] => L4B [link] => https://www.youtube.com/embed/fLFruYRQzGU ) [2] => Array ( [title] => L4C [link] => https://www.youtube.com/embed/g0xcfWcRzA8 ) [3] => Array ( [title] => L4D [link] => https://www.youtube.com/embed/2QG9ur4gBS8 ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第4講 座標系統到3D:從AutoCAD->Excel->Inventer