The motor further comprises {HEAD ~ a piston assembly} placed through a hole of {TAIL ~ the buried magnet system} and operatively connected to the buried magnet system 
The motor further comprises { HEAD ~ a piston assembly } placed through a hole of { TAIL ~ the buried magnet system } and operatively connected to the buried magnet system
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH