To those skilled in the art, however, {TAIL ~ the present invention} can be applied in any other form of {HEAD ~ the disk drive}, such as hard disk drives 
To those skilled in the art , however , { TAIL ~ the present invention } can be applied in any other form of { HEAD ~ the disk drive } , such as hard disk drives
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH