{HEAD ~ The controls} of oxygen concentration and {TAIL ~ antimony concentration} in the single crystal 40 are carried out in a like manner in a case of no addition of antimony 
{ HEAD ~ The controls } of oxygen concentration and { TAIL ~ antimony concentration } in the single crystal 40 are carried out in a like manner in a case of no addition of antimony
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH 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 OTH