为什么任务栏两个图标之间有空隙

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select * from tbl_Articles WHERE ArticleID=624187 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=624187 LIMIT 0,1
select * from tbl_Articles_sphinx where id=624187 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1083227,1101467,1055758,1050025,1092387,1120988,1308960,1097121,1083453,2893193,1129351,1096523,1105569,1088547,993285,1125210,1089526,1440391,1119458,1089684,1123263,1088475,1078735,1368851,1367811,1130332,1101611,1083618,1065705,1041599) ORDER BY field (ArticleID,1083227,1101467,1055758,1050025,1092387,1120988,1308960,1097121,1083453,2893193,1129351,1096523,1105569,1088547,993285,1125210,1089526,1440391,1119458,1089684,1123263,1088475,1078735,1368851,1367811,1130332,1101611,1083618,1065705,1041599)