The guard member defines {HEAD ~ a plurality} of {TAIL ~ apertures} that are aligned with respective nozzle openings 
The guard member defines { HEAD ~ a plurality } of { TAIL ~ apertures } that are aligned with respective nozzle openings
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH