工程用途指的是什么

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select * from tbl_Articles_data WHERE ArticleID=170531 LIMIT 0,1
select * from tbl_Articles_sphinx where id=170531 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1092053,1048788,1094297,1132313,1114502,1072809,1074198,1065449,1062346,1108668,1077890,1118461,1450002,1067115,1083532,1106142,1087351,1070922,1106196,993213,1073076,1042020,1068973,1085480,1077056,1065083,1063981,1067880,1056858,1099985) ORDER BY field (ArticleID,1092053,1048788,1094297,1132313,1114502,1072809,1074198,1065449,1062346,1108668,1077890,1118461,1450002,1067115,1083532,1106142,1087351,1070922,1106196,993213,1073076,1042020,1068973,1085480,1077056,1065083,1063981,1067880,1056858,1099985)