A combination grinding machine grinds {HEAD ~ a plurality} of axially arranged portions of a workpiece by {TAIL ~ use} of a grinding wheel supported rotatably on a first wheel head and a superfinishing wheel supported rotatably on a second wheel head 
by
A combination grinding machine grinds { HEAD ~ a plurality } of axially arranged portions of a workpiece by { TAIL ~ use } of a grinding wheel supported rotatably on a first wheel head and a superfinishing wheel supported rotatably on a second wheel head
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH