Array ( [0] => Array ( [title] => L8A [link] => https://www.youtube.com/embed/Vn-uq-UbwRQ ) [1] => Array ( [title] => L8B [link] => https://www.youtube.com/embed/b-agFXy-zXw ) [2] => Array ( [title] => L8C [link] => https://www.youtube.com/embed/WPQ0nY9D5IA ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第8R講 Regular Surface (cont.)