Variables that affect the compensation value include the physical volume, {HEAD ~ an internal pressure} of {TAIL ~ a suction pipe}, and the starting state of the engine 
of
Variables that affect the compensation value include the physical volume , { HEAD ~ an internal pressure } of { TAIL ~ a suction pipe } , and the starting state of the engine
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 OTH OTH OTH OTH OTH OTH OTH OTH