The guide for the hold-down plate moving up and down is near to the lead rails in two sides. The good guide effect ensures the parallelism of upper and lower working sides.
板上下运动的导向靠两侧导轨，导向效果较好，保证了上下工作面的平行度。
The construction, force calculation and motor power calculation are described in the article for the hold-down system in plate mills.
论述中板轧机压下装置的组成及结构、力的计算、电机功率的计算。
Remove the two hold-down bolts and lift index plate from valve.
拆卸两个紧固螺栓，提起阀门上的刻度板。
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