關於「1o l1」標籤,搜尋引擎有相關的訊息討論:
[PDF] DNV Ship rules Pt.3 Ch.1 Hull structural design - Ships with length ...name to DNV GL AS. For further ... Main changes January 2016, entering into force 1 July 2016 ... tw (maximum) for unsymmetrical free flanges tw = web plate ...