{HEAD ~ The pump chamber} 5 is thus defined by the ring 1, the side plate 2, and {TAIL ~ the diaphragm} 4 
is defined by
{ HEAD ~ The pump chamber } 5 is thus defined by the ring 1 , the side plate 2 , and { TAIL ~ the diaphragm } 4
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH