The inverted position of tube 22 affords {HEAD ~ two significant advantages} to {TAIL ~ flowmeters} constructed according to the invention 
The inverted position of tube 22 affords { HEAD ~ two significant advantages } to { TAIL ~ flowmeters } constructed according to the invention
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH