The first effective surface area determines the magnitude of the peak fluid pressure in {HEAD ~ the selected second force} transmitting {TAIL ~ mechanism} and the downstream conduit 
transmitting
The first effective surface area determines the magnitude of the peak fluid pressure in { HEAD ~ the selected second force } transmitting { TAIL ~ mechanism } and the downstream conduit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH