Array ( [0] => Array ( [title] => L9A [link] => https://www.youtube.com/embed/JXE33lFEnyk ) [1] => Array ( [title] => L9B [link] => https://www.youtube.com/embed/gG_lhtesC6s ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - Lecture 9 | Existence, uniqueness, and continuation; Eventually compact semiflows