Thus, {HEAD ~ the magnetic powder} in this mixing ratio is specifically suitable for {TAIL ~ magnetic recording} in a long wavelength range 
is specifically suitable for
Thus , { HEAD ~ the magnetic powder } in this mixing ratio is specifically suitable for { TAIL ~ magnetic recording } in a long wavelength range
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH