When pulled to one side of its equilibrium position and released, the pendulum bob vibrates about this position . 把此質(zhì)點作為擺錘拉到平衡位置的一側(cè),然后釋放,擺錘就在平衡位置附近擺動。
When the material isn ' t stacking correctly , or has the appearance of the strip pulling to one side could be an alignment , level , or bearing concern in one of these rolls 如果沒有正確卷取卷料或者出現(xiàn)帶卷偏向一側(cè),則上述這些輥中可能存在對中,水平面或軸承問題。