In {HEAD ~ this arrangement}, {TAIL ~ the hydraulic circuit} would control the simultaneous and identical movements of all the cases 
In { HEAD ~ this arrangement } , { TAIL ~ the hydraulic circuit } would control the simultaneous and identical movements of all the cases
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH