多角形接线中，每个回路都与（  ）台断路器相连接。 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id < 4500457 and id<>'4500457' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id > 4500457 and id<>'4500457' order by id asc limit 5