Array ( [0] => Array ( [title] => L24A [link] => https://www.youtube.com/embed/DNjbflWRJeo ) [1] => Array ( [title] => L24B [link] => https://www.youtube.com/embed/YGDe249hyRw ) [2] => Array ( [title] => L24C [link] => https://www.youtube.com/embed/nTF2phtSfKQ ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第24講 powder method + LEED