{TAIL ~ the maximum length} of the partial region in {HEAD ~ the radial direction} is 0.4 mm or more 
{ TAIL ~ the maximum length } of the partial region in { HEAD ~ the radial direction } is 0.4 mm or more
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH