切除适当位置的断路器，是继电保护的()。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69216' and id < 4481463 and id<>'4481463' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69216' and id > 4481463 and id<>'4481463' order by id asc limit 5