means for releasably sealing the inlet end of the nozzle to the front end of the tubular member with {HEAD ~ said openings} in {TAIL ~ communication} 
in
means for releasably sealing the inlet end of the nozzle to the front end of the tubular member with { HEAD ~ said openings } in { TAIL ~ communication }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL