Thus, for instance, both the Venturi effect and {TAIL ~ the Coanda effect} may be used to increase the efficiency of {HEAD ~ the overall system} 
Thus , for instance , both the Venturi effect and { TAIL ~ the Coanda effect } may be used to increase the efficiency of { HEAD ~ the overall system }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD