{HEAD ~ The diaphragm} 4 is moved with a suction stroke in direction B and a delivery stroke in direction C by {TAIL ~ means} of a hydraulic fluid contained in a working chamber 9, that also includes a conventional device 10 for compensating leaks 
is moved by
{ HEAD ~ The diaphragm } 4 is moved with a suction stroke in direction B and a delivery stroke in direction C by { TAIL ~ means } of a hydraulic fluid contained in a working chamber 9 , that also includes a conventional device 10 for compensating leaks
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH