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