同步发电机的电磁功率为（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69325' and id < 4488069 and id<>'4488069' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69325' and id > 4488069 and id<>'4488069' order by id asc limit 5