一个理由是坐垫和把横会过低。
它的作用是把横边送来纸改变方向或在带式折时绕过先前的纸。
Used to turn the web when feeding from the side, or to by-pass the former in ribbon folding.
还需要在测扭振传感器获得的振动信号中把横振引起的信号分离出去。
It is also necessary to separate signals brought by transverse vibration from vibration signals, obtained by sensors used for measuring torsional vibration.
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