一台同步发电机在额定负载时增加励磁电流，则（        ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id < 4421305 and id<>'4421305' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68477' and id > 4421305 and id<>'4421305' order by id asc limit 5