Lateral loading, the rigidity of triangular needle was smallest, its rem-nant deformation was medium.

外侧加力，三棱针刚度最小，残余变形居中。

youdao

Lateral loading, the rigidity of triangular needle was smallest, its rem-nant deformation was medium.

外侧加力，三棱针刚度最小，残余变形居中。

youdao