This device also makes {TAIL ~ possible measurement} of the gap for the profile base indirectly on {HEAD ~ line} 
This device also makes { TAIL ~ possible measurement } of the gap for the profile base indirectly on { HEAD ~ line }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD