To answer this question, we need to plot trajectories of principal stresses.为了回答这个问题, 我们尚须画出主应力迹线图.The subject of orthogonal trajectories remained dormant.正交轨线的问题一直处于沉寂状态.The network of lines now conforms closely with a ...

n.弹道( trajectory的名词复数 )，轨道，轨线，常角轨道...

trajectories的音标：...