质量分数怎么算

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select * from tbl_Articles WHERE ArticleID=1539292 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1539292 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1539292 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2321616,85998,375102,86091,487977,520269,434068,473532,393570,436492,484889,1100581,512997,524256,462471,493967,540246,1352978,431563,438115,2362223,433326,427091,86732,517757,1097803,416009,405522,377799,1351141) ORDER BY field (ArticleID,2321616,85998,375102,86091,487977,520269,434068,473532,393570,436492,484889,1100581,512997,524256,462471,493967,540246,1352978,431563,438115,2362223,433326,427091,86732,517757,1097803,416009,405522,377799,1351141)