Array ( [0] => Array ( [title] => L46A [link] => https://www.youtube.com/embed/A65UNGPTJFY ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第46講|Lecture 9 Electromagnetic Waves|9_3A Electromagnetic Waves in Matter 9_3_1 Propagation in Linear Media