发生短路时会减小导体上所受的应力。(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id < 4504329 and id<>'4504329' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id > 4504329 and id<>'4504329' order by id asc limit 5