First aiming at the problem of stability for the elastic vimineous bar the mechanical models are established .

首先针对 细长 运动杆件的稳定性问题，建立了力学模型。

The microstructure of copper clad aluminum wire by drawing at room temperature is vimineous grain as fibril shape from prime equiaxed grain .

经室温拉拔的铜包铝线的显微组织是纤维状 细长晶粒，晶界 面积 增大 系数与形 变量 近似 地成 正比。

Based on the differential equation of the bar with small defection the buckling critical load of vimineous bar is confirmed .

基于小挠度下杆所承受载荷的微分方程，确定了 细长 运动杆的失稳临界载荷。