The patient has dyspnea, tachycardia, and cyanosis.病人呼吸困难, 心动过数及发绀.There may be dyspnea after exertion.运动后会呼吸困难.Dyspnea is the perception of uncomfortable , distressful, or labored breathing.呼吸困难是病人对呼吸不适 、 呼吸困苦或费力的自我感觉.T...
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 ...