什么是压实度极值

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SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2585665,1727643,2417995,1290456,1112316,1984867,1770732,1151427,936105,1102252,1118741,572554,2764254,1105530,1112422,1098733,453719,1112981,1104739,2524262,971317,2960500,1531266,1121694,1107475,537125,708406,1212031,1161674,572748) ORDER BY field (ArticleID,2585665,1727643,2417995,1290456,1112316,1984867,1770732,1151427,936105,1102252,1118741,572554,2764254,1105530,1112422,1098733,453719,1112981,1104739,2524262,971317,2960500,1531266,1121694,1107475,537125,708406,1212031,1161674,572748)