对称三相电路负载Y联接，已知相电压，则线电压=（）V

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id < 2599358 and id<>'2599358' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32675' and id > 2599358 and id<>'2599358' order by id asc limit 5