Polar curve - a graph showing the performance of a wing based on it ' s airspeed and sink rate 滑降比特性曲线用图表显示飞行伞飞行对空速度及沈降率基本特性。
In this paper , some aspects such as the behavior of pore pressure of unsaturated loess , the dynamic constitutive relationship and the characteristics of the dynamic modulus , dynamic strength and dynamic damping ratio are studied with the dynamic torsional shear test of loess 在以上研究的基础上,本文又通过黄土的动扭剪试验研究了非饱和黄土的孔隙压力特性、动本构关系、动剪切模量特性、动强度特性以及动阻尼比特性。