有功功率在并列运行的发电机组间分配的原则是按(    )相同。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69460' and id < 4498465 and id<>'4498465' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69460' and id > 4498465 and id<>'4498465' order by id asc limit 5