| http://www.w3.org/ns/prov#value | - To measure the normal flux density, use may be made of a gauss meter HGM-8300 or an axial probe Type A1 available from ADS. Experiments showed that when the attenuation ratio was 40% or above, preferably 50% or above, there could be formed a magnet brush MB short enough to sufficiently reduce the omission and other defects and dense enough to be sufficiently uniform in the axial direction of the s
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