耗时是什么意思

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select * from tbl_Articles WHERE ArticleID=1095307 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1095307 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1095307 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1112398,1608737,1070732,1114456,1703324,1285400,1481915,1048034,1062959,1499329,1496365,1074312,1465483,1048622,999426,983962,1080363,1077695,2789078,1067115,1697654,1076790,1100723,1057932,1057607,1085318,1078983,1527649,1082303,1283967) ORDER BY field (ArticleID,1112398,1608737,1070732,1114456,1703324,1285400,1481915,1048034,1062959,1499329,1496365,1074312,1465483,1048622,999426,983962,1080363,1077695,2789078,1067115,1697654,1076790,1100723,1057932,1057607,1085318,1078983,1527649,1082303,1283967)