The sealing strips seal the suction zones towards the roll interior where no vacuum is created.
2
真空伏辊空气动力性噪声是造纸机的主噪声源。
The aerodynamical noise of vacuum couch roll is the major noise source of paper machine.
3
水印辊安放在真空箱段脱水区域的中部，对纸页施加一定的压力并通过纸页和网子驱动。
The dandy roll was placed in the middle of the suction box section where it exerted a certain pressure on the sheet and was driven by the sheet and wire.
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