Thus, when the valve is closed, {HEAD ~ current} flows from electrode 140 to electrode 142 through {TAIL ~ strip} 145 
flows through
Thus , when the valve is closed , { HEAD ~ current } flows from electrode 140 to electrode 142 through { TAIL ~ strip } 145
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH