{HEAD ~ The pressure} ensures {TAIL ~ adequate contact} between the covering and a counter shaft assembly which communicates magnetically with internal electronic circuitry 
{ HEAD ~ The pressure } ensures { TAIL ~ adequate contact } between the covering and a counter shaft assembly which communicates magnetically with internal electronic circuitry
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH