平衡方程和运动学关系式是与材料类无关的.The equations of equilibrium and kinematic relations are independent of the type of material.机械系统的运动学与动力学包括刚体的平面移动.Kinematics and dynamics of mechanical systems including rigid bodies in plane motion....
She implored him to stay.她恳求他留下。He implored forgiveness for what he had done.他乞求宽恕他过去所做的事。Hung - chien limply implored Miss Su not to see him home.鸿 渐 有气无力地恳请苏小姐别送自己.'Tell me what to do!' she implored him.她哀求他说...