L5A
3.1 The Plane Wall
L5B
3.3 Radial Systems
Array ( [0] => Array ( [title] => L5A [link] => https://www.youtube.com/embed/sA6DWPHFVfU ) [1] => Array ( [title] => L5B [link] => https://www.youtube.com/embed/wGnxiixP9Wo ) )
Title
第1節
第2節
Syllabus
L5A
3.1 The Plane Wall
L5B
3.3 Radial Systems