1·The basic problem here is that everyone forgot that an unconstrained system has flexible modes AND the rigid body modes.
这里的根本问题是，人人都忘记了一个无约束系统具有弹性体模态以及刚体模态。
2·The rigid body motion of a struck ship in collision is delayed to a certain extent, compared with local damage deformation of collision zone.
船舶碰撞过程中，被撞船的刚体运动较之碰撞区的局部损伤变形而言，存在一定程度的滞后效应。
3·The rigid body motion of struck ship in collision is delayed to a certain extent, compared with local damage deformation of collision zone.
船舶碰撞过程中，被撞船的刚体运动较之碰撞区的局部损伤变形存在一定程度的滞后。
4·Further topics include kinematics, particle dynamics, motion relative to accelerated reference frames, work and energy, impulse and momentum, systems of particles and rigid body dynamics.
更进一步探讨运动学，质点动力学，于加速座标系上之运动行为，功，能量，冲量，动量和质点系统与刚体动力学。
5·When the support spring stiffness gets larger and larger, the rigid body mode characteristic will diminish as the flexible characteristic becomes more pronounced.
当支持弹簧刚度变得越来越大时，随着弹性体属性变得越来越突出，刚体模态属性将减少。