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