The circuit requires reduction of the engine speed to a speed below the lower response speed in order to restore {HEAD ~ the response speed} of {TAIL ~ the speed responsive control} to the predetermined speed 
of
The circuit requires reduction of the engine speed to a speed below the lower response speed in order to restore { HEAD ~ the response speed } of { TAIL ~ the speed responsive control } to the predetermined speed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH