系统振荡与短路同时发生，高频保护装置会（    ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69378' and id < 4491498 and id<>'4491498' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69378' and id > 4491498 and id<>'4491498' order by id asc limit 5