为什么截屏图片模糊

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select * from tbl_Articles WHERE ArticleID=894386 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=894386 LIMIT 0,1
select * from tbl_Articles_sphinx where id=894386 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1933141,1767721,2182780,2177190,1112236,232905,1095930,1589304,2271166,209570,2028270,423386,1450875,417189,1096372,1100913,2644074,924875,1659457,1665837,547834,1073899,601061,1972426,1367675,1083059,1124316,1695818,1088475,2254113) ORDER BY field (ArticleID,1933141,1767721,2182780,2177190,1112236,232905,1095930,1589304,2271166,209570,2028270,423386,1450875,417189,1096372,1100913,2644074,924875,1659457,1665837,547834,1073899,601061,1972426,1367675,1083059,1124316,1695818,1088475,2254113)