The silencer of FIG 1 has {HEAD ~ a pot} like housing 1 with {TAIL ~ a cylindrical pot casing} 2 and with a pot bottom 3 
with
The silencer of FIG 1 has { HEAD ~ a pot } like housing 1 with { TAIL ~ a cylindrical pot casing } 2 and with a pot bottom 3
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH