The sealing strips seal the suction zones towards the roll interior where no vacuum is created.
密封条用于密封朝向（非真空的）辊内部的抽吸区。
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.
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.
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。
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