Finally, because the rotor can be formed in a small diameter, hence the inertia thereof is reduced, thus improving {HEAD ~ the response} of {TAIL ~ the actuator} 
of
Finally , because the rotor can be formed in a small diameter , hence the inertia thereof is reduced , thus improving { HEAD ~ the response } of { TAIL ~ the actuator }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL