连接体问题本身就是难点,而涉及弹簧类的连接体问题则更是如此.在此模型中,当其中一个物体发生了运动就会带动另一物体运动,同时两物体在运动过程中又会受到弹簧的制约作用,一伸一缩式的前进把运动类问题推向一个较高的层次,而由于每个物体都是在变力作用下的运动,所以其具体的 The problem of connectors is itself a difficult one, and even more so for connectors involving springs. In this model, movement of one of the objects causes movement of the other and, in the meantime, Spring restraint, a stretch of a contraction of the type of movement to a higher level, and because each object is under the action of variable force, so its specific