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