如何将单相电流换算三相电流

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select * from tbl_Articles WHERE ArticleID=2237588 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2237588 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2237588 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(190917,2027286,2025563,244240,1897883,2156402,2731753,1131989,1792742,1349159,1464360,1130506,1425545,1493233,2535920,1515271,1069935,190888,2686146,1980532,2117042,200138,1709131,1052195,141420,2060614,2706717,2548569,2389437,1130390) ORDER BY field (ArticleID,190917,2027286,2025563,244240,1897883,2156402,2731753,1131989,1792742,1349159,1464360,1130506,1425545,1493233,2535920,1515271,1069935,190888,2686146,1980532,2117042,200138,1709131,1052195,141420,2060614,2706717,2548569,2389437,1130390)