In FIG 1, the sensor 23 is indicated by broken lines near {HEAD ~ the margin} 21 of {TAIL ~ the strip} 20 in the region of the cross cutting means 
In FIG 1 , the sensor 23 is indicated by broken lines near { HEAD ~ the margin } 21 of { TAIL ~ the strip } 20 in the region of the cross cutting means
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH