A spraying unit has a drive engine for driving a blower, has a blow pipe through which an air flow is conveyed by the blower, and has a spraying agent tank which is arranged on a backpack of the spraying unit. In response to an output of the pseudo redundancy replacement judging circuit chain, the redundancy replacement judging circuit outputs a redundancy judgment result of the redundancy replacement judging circuit chain. Subsequently, the selected media device may be pre-populated by saving metadata files, sample media item files, andor media item files associated with the one or more selected media items on the selected media device. Alternatively, the sacrificial layer is removed by cooling the sandwich with liquid nitrogen, or alternatively still, the sacrificial layer is removed by heating the sacrificial layer, thereby evaporating the sacrificial layer. The invention relates to a connecting subassembly for connecting an initial container and a target container. The dividing member extends either in contact with or in close facing relationship with the bottom edge portions of the at least two panes.