如何计算沟槽上开口宽度

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select * from tbl_Articles WHERE ArticleID=416182 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=416182 LIMIT 0,1
select * from tbl_Articles_sphinx where id=416182 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1083206,1372784,837402,170930,1128957,1125075,1125249,1130874,1126128,293860,1118439,457043,1125054,339438,1090396,1093110,1079255,291692,1362376,1526528,1079051,148383,1130364,484626,214204,162351,1078885,143997,1346031,1498842) ORDER BY field (ArticleID,1083206,1372784,837402,170930,1128957,1125075,1125249,1130874,1126128,293860,1118439,457043,1125054,339438,1090396,1093110,1079255,291692,1362376,1526528,1079051,148383,1130364,484626,214204,162351,1078885,143997,1346031,1498842)