配电设备的排列布置应在其前后或两侧留有(   )的通道。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69529' and id < 4504981 and id<>'4504981' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69529' and id > 4504981 and id<>'4504981' order by id asc limit 5