Through the savings of electrical control valves, {HEAD ~ the electronic outlay} in {TAIL ~ the control apparatus} is also reduced, and the energy consumption is lowered 
Through the savings of electrical control valves , { HEAD ~ the electronic outlay } in { TAIL ~ the control apparatus } is also reduced , and the energy consumption is lowered
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 OTH OTH