{HEAD ~ The transducer elements} are impressed with {TAIL ~ voltage} through the printed circuit and ground electrode to issue ultrasonic waves 
are impressed with
{ HEAD ~ The transducer elements } are impressed with { TAIL ~ voltage } through the printed circuit and ground electrode to issue ultrasonic waves
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH