浅论平面运动中的瞬时静止

The Primary Discussion on the Instantaneous Statics in Plane Motion of Rigid Body

从实例和理论两个方面对平面运动中的一种瞬态──瞬时静止──进行了探讨，给出了“瞬时静止”的定义，指出了它的特点，并阐述了该解态的意义．

A instantaneous state in place motion-instantaneous statics, from two aspects-instance and theory is studied and its instantaneous statics is defined- Meanwhile its character is pointed out its meaning is expounded.