{TAIL ~ The ratio} of movement of the stylus to {HEAD ~ the cutter} is established by the linkages in accordance with the ratio of radiation absorption of the compensating material to the radiation absorption of human tissue 
{ TAIL ~ The ratio } of movement of the stylus to { HEAD ~ the cutter } is established by the linkages in accordance with the ratio of radiation absorption of the compensating material to the radiation absorption of human tissue
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH