平极 meaning in Chinese

mean pole

The stereographic projection must be supplemented by other constructions .
赤平极射投影还要有其他的作图方法加以补充。
Mean pole of the epoch
历元平极
Stereographic technique is used in the analysis of the footwall slope in the open - pit of bangmoshan iron mine . the slope fracture mode and the slipping direction of unstable blocks are given and the stable slope angle is calculated to be 46
运用赤平极射投影的方法，对棒磨山铁矿露天采场下盘边坡进行了稳定性分析，给出了边坡破坏模式和不稳定块体的滑动方向，并推算稳定边坡角为46 。
On the basis of appraising a traditional method , the method of the stereographic projection and proportionally stereographic projection of a solid volume , this paper has introduced such methods as determination of dominant discontinuities , kinematic tests for rock - mass failure modes , geometrical judgment of a removable block , and determination of a key block , extending perfecting the traditional method , and thus making it has better suitability or availability and practicality
摘要本文在评价用传统方法即赤平极射投影和实体比例投影方法分析节理边坡稳定性的基础上，结合具体工程实例引进了优势结构面的确定、岩体破坏模式的运动学判释、可移动块体的几何判定和关键块体的确定等方法，使传统方法得到拓宽和完善，从而具有更好的适用性和可操作性。