The second dating method was palaeo - magneticanalysis, or magnetic polarity stratigraphy .
第二种测定法是古磁学分析法, 也叫磁极地层学测定法。
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Secondly, parameters of electric machine are research foundation of operating characteristics, in order to acquire the parameters of ASCPM correctly, magneticanalysis about ASCPM is done.
ANALYSIS: The powerful magnetic field thought to surround spinning black holes may also generate a phenomenon we are more familiar with on Earth: an 'aurora'.