Array ( [0] => Array ( [title] => L15A [link] => https://www.youtube.com/embed/v3SEQWH7_Yc ) [1] => Array ( [title] => L15B [link] => https://www.youtube.com/embed/zzLMhwZlC5I ) [2] => Array ( [title] => L15C [link] => https://www.youtube.com/embed/juaZNuHa7LQ ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第15R講 Converging–Diverging Duct Flow