A small cannister 72 is mounted at {HEAD ~ the back edge} of {TAIL ~ louver} 62, and a large cannister 74 is mounted at the front edge 
of
A small cannister 72 is mounted at { HEAD ~ the back edge } of { TAIL ~ louver } 62 , and a large cannister 74 is mounted at the front edge
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 OTH OTH OTH OTH OTH OTH OTH OTH