电网的无功补偿应以(    )为原则，并应随负荷(或电压)变化进行调整。  

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69463' and id < 4498558 and id<>'4498558' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69463' and id > 4498558 and id<>'4498558' order by id asc limit 5