.派克变换后的发电机磁链方程中所有电感系数都是常数。(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69496' and id < 4501869 and id<>'4501869' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69496' and id > 4501869 and id<>'4501869' order by id asc limit 5