relief hole diameter的意思|示意

The stress relief method of hole diameter deformation was used to measure the stress distribution of the pillar structure in the mined area in a big phosphate mine.

采用孔径变形应力解除法，测量了某大型磷矿采空区中矿柱结构的应力分布规律；

The results present that the forging load decreases when a suitability diameter of relief-hole is chosen, but the function is not obvious.

结果显示，选择适当的分流孔尺寸可以降低成形载荷，但作用不很明显。