In the graphical method of the oblique axonometry, the affine transformation is taken as the ellipse's principal direction and the size of the principalradius.
在斜轴测的图解法中，用仿射变换作椭圆的主方向和主半径大小。
2
The results show that the principal factors effecting the smash district and the blasting cavity radius are strength of the shock wave, the characteristics of rocks and radius of the hole.
通过分析表明：影响粉碎区半径和爆腔半径的主要因素是冲击波的强度、岩石的性质和炮孔尺寸等。
3
The calculation shows that the radius and displacement of plastic zone will reduce when the neutral principal stress is considered.