Array ( [0] => Array ( [title] => L27A [link] => https://www.youtube.com/embed/CXQRvPkyCmE ) [1] => Array ( [title] => L27B [link] => https://www.youtube.com/embed/IqnlitWBF-c ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第27R講 nucleation and growth of pure materials