vertex angle meaning in Chinese

顶角

Analysis of images caused by vertex angle of a prism and their application
三棱镜顶角成像之剖析及其应用
On the geometric idenities combining in volving the vertex angles of two simplexes and its applications
联系2个单形顶点角的几何恒等式及其应用
Utilize energy method to research crook problem of drilling rod under pressure and act on together , having studied the crooked influence to the drilling rod of torsion emphatically , the theory analyses found that axial load , hole vertex angle and torque are important factors of influence drilling rod crook
利用能量方法研究了压力和扭矩共同作用下钻杆的弯曲问题，着重研究了扭矩对钻杆弯曲的影响，理论分析发现，轴向载荷，钻孔顶角和扭矩是影响钻杆弯曲的重要因素。