Accordingly, {HEAD ~ the end} of the needle 136 and the needle sheet 143 may be damaged by the repeated shock of {TAIL ~ the repeated contact} 
Accordingly , { HEAD ~ the end } of the needle 136 and the needle sheet 143 may be damaged by the repeated shock of { TAIL ~ the repeated contact }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL