vt. shear
misc. shearing force
在流体中，张力和切力通常可以忽略不计。
In fluids, forces of tension and shear can often be ignored.
平衡于状态中的流体，经受不住切力，只能经受非常小的张力。
A fluid in equilibrium cannot sustain shear forces, and it can sustain only very small forces of tension.
采用三种筒内外土体对筒壁的纵向切力模型，提出了一种计算大直径圆筒挡墙结构变位的方法。
Based on three vertical shear models of soil an approach to calculate the displacements of large diameter cylindrical wall is presented here.
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