東京メモ
To collect my portrait and identity for travel and throw my question.
Friday, October 7, 2016
（断面２次モーメント）
【１】四角形（軸中心） I = (b×H^3) / 12
梁幅
mm 梁厚
mm
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment