東京メモ
To collect my portrait and identity for travel and throw my question.
Saturday, October 8, 2016
（重心軸から縁までの距離）
【１】四角形（軸中心） 重心軸より縁までの距離 i = h / 2
梁厚
mm
(mm)
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment