Although the first plants sporting wood were small, subsequent species quickly took advantage of wood's structural strength: in just a few million years, some had attained treelike stature.
Each geographic region has different species of oak with individual flavour compounds and structural characteristics.
每一个地理区域都有不同种类的橡木与个人风味成分和结构特点。
3
In this paper, the problems about shock-absorbing designs of the second species of the main-secondary structures are studied on the basis of the structural composite control theory.