Array ( [0] => Array ( [title] => L17A [link] => https://www.youtube.com/embed/iJtiybHh3Ak ) [1] => Array ( [title] => L17B [link] => https://www.youtube.com/embed/VhODHMSz4YM ) [2] => Array ( [title] => L17C [link] => https://www.youtube.com/embed/JXTNF-TrikU ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第17R講 kinematic theory