{TAIL ~ Movement} of the first wall relative to the second wall due to varying combustion chamber pressure transmits a load to {HEAD ~ the sensor} 
{ TAIL ~ Movement } of the first wall relative to the second wall due to varying combustion chamber pressure transmits a load to { HEAD ~ the sensor }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD