The said device controls {HEAD ~ discharge members} of {TAIL ~ the receiving containers} of the preceding stage, which leads into a channel 
of
The said device controls { HEAD ~ discharge members } of { TAIL ~ the receiving containers } of the preceding stage , which leads into a channel
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH