{HEAD ~ The second piston} is exposed to a pressure which depends upon {TAIL ~ the pressure} generated in the first cylinder 
{ HEAD ~ The second piston } is exposed to a pressure which depends upon { TAIL ~ the pressure } generated in the first cylinder
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH