Array ( [0] => Array ( [title] => L21A [link] => https://www.youtube.com/embed/Cj27P9zD0EI ) [1] => Array ( [title] => L21B [link] => https://www.youtube.com/embed/gyH7qLiFXFY ) [2] => Array ( [title] => L21C [link] => https://www.youtube.com/embed/Dl9uN9VnjQ0 ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第21講 Laue method