| 摘要 |
A trimming device having a trimming knife for trimming a brochure along a trimming plane at a front end of the brochure has one or more suction elements in the area of the brochure to be trimmed. The brochure has a cover and an inner book cased in the cover with flaps of the cover being flush with or protecting past the inner book. The suction element is configured to bulge a flap and retract a flap away from the trimming plane.
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