concave curvature 中文意思是什麼
concave curvature
解釋
凹曲度-
Concave reflecting surfaces of spherical cap, paraboloid and hyperboloid of revolution are investigated with regard to the dependence of the levitation force on the section radius rb and curvature radius r ( or depth d ) of the reflector
針對球面、旋轉拋物面和旋轉雙曲面三種形狀的凹面反射端，系統研究了懸浮力與反射端截面半徑r _ b和曲率半徑r （或深度d ）之間的本徵關系。
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