measuring the transfer data at the predetermined transfer position again, for a guided vehicle which needs {HEAD ~ measurement} of {TAIL ~ the machine difference data} again, to newly determine machine difference data to update the transfer data at each of the transfer positions 
of
measuring the transfer data at the predetermined transfer position again , for a guided vehicle which needs { HEAD ~ measurement } of { TAIL ~ the machine difference data } again , to newly determine machine difference data to update the transfer data at each of the transfer positions
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH