线性磁路计算时如果存在多个磁动势，可应用叠加原理。（   ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69398' and id < 4492769 and id<>'4492769' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69398' and id > 4492769 and id<>'4492769' order by id asc limit 5