上翼 meaning in English

top flange
upper limb
upper wing
wing top
wing; upper

At the top flange there would be enough slack so that no relative twist of any significant magnitude would be introduced into the girder web .
在上翼缘处有足够的松动，因而在主梁腹板上并不会引起很大的相对扭转。
The slab has provided greater fixity to the top flange, and the adjacent web gap has experienced greater deformation and has cracked first .
桥石板为上翼缘提供了很大的固结度，于是相邻的腹板间隙就经受了较大的变形并且首先开裂。
Visual observations showed that a horizontal displacement in the longitudinal direction of the bridge developed between the tie girder and the top flange of the floor beam at the end connection .
肉眼观察表明：在端节点处的系梁和横梁上翼缘之间产生一种沿桥梁纵向的水平位移。
No , then the top wing faiis off
不行，那样的话上翼就掉下来了
No , then the top wing falls off
不行，那样的话上翼就掉下来了

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