配电装置的最小安全距离的大小与（  ）等因素有关。  

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69485' and id < 4500671 and id<>'4500671' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69485' and id > 4500671 and id<>'4500671' order by id asc limit 5