End of the trough is connected to exhaustor means which suck {HEAD ~ the fibre fleece} towards {TAIL ~ injector}  
towards
End of the trough is connected to exhaustor means which suck { HEAD ~ the fibre fleece } towards { TAIL ~ injector }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH