论文部分内容阅读
1．一线系两物两个物体系于一根不可伸长的轻线两端发生相互作用,这两个物体在沿线的方向上的速度分量等大、同向．
1. The system of two objects in one line is interacting at both ends of an inextensible light line. The velocity components of these two objects in the direction along the line are equal and large.