The transducer array is mounted on a carriage assembly which moves back and forth on {HEAD ~ a pair} of {TAIL ~ rails} inside a fluid compartment in the probe 
of
The transducer array is mounted on a carriage assembly which moves back and forth on { HEAD ~ a pair } of { TAIL ~ rails } inside a fluid compartment in the probe
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH