Then transitionalsurface layer model are established to simulate the process of micro upsetting.
基于微塑性成形的特点建立过渡式表面层模型。
2
As the outline and surface of old city, the district of old city ring is not only the important section of old city conservation, but also the transitional district between old and modern urban space.
作为古城外轮廓和界面的环古城地区,不仅是古城保护的重点地段,也是现代城市空间与老城空间的过渡区域。
3
The distribution of pore surface area is mainly in micro and transitional pore; the pore connectivity is poor and the permeability of coal seam is extre…