The stationary portion and the piezoelectrically adjustable portion of the intermediate part are joined to one another by {HEAD ~ means} of {TAIL ~ a parallel spring guide} 
The stationary portion and the piezoelectrically adjustable portion of the intermediate part are joined to one another by { HEAD ~ means } of { TAIL ~ a parallel spring guide }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL