So the problem of alternating motion of roll is resolved based on it.
使用此值，从根本上解决了轧机的窜辊问题。
The design of locking device is one of the difficult points in the whole design of mechanism with alternating motion.
锁闭装置的设计是整个往复运动机构设计的一个难点。
The prime motor rotates in a fixed direction and the alternating motion of the carrier bar is accomplished by the crank-rocker mechanism.
电动机单向旋转，用曲柄摇杆机构换向，实现悬点的往复直线运动。
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