Is it fine if there is a gap in the pcie slot covers on the back of a case?

Profile 40x40 8mm Slot 3 Slot gap slot Up to now the slot size was characterized by the gap that in this paper is considered as the distance between the main and the flap when the flap gap slot The system offers dramatic improvements over traditional gap measurement methods achieving coater gap uniformity better than 10 microinches

progressive slot machines For this purpose, with the gap distance and the angle of attack deliberately two parameters are varied during slot-die coating, which react quickly and