用angle提取两个相位之后怎么算差值

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select * from tbl_Articles WHERE ArticleID=3217589 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3217589 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3217589 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1119029,1118943,1113183,1117860,1110285,985152,1097525,1117125,1121360,1108393,1108195,1010459,981473,1064425,1082369,1103768,1119269,1115635,1107174,1093343,1103688,1106551,1125988,1098827,1091360,1115609,1103088,1072857,1117039,1126476) ORDER BY field (ArticleID,1119029,1118943,1113183,1117860,1110285,985152,1097525,1117125,1121360,1108393,1108195,1010459,981473,1064425,1082369,1103768,1119269,1115635,1107174,1093343,1103688,1106551,1125988,1098827,1091360,1115609,1103088,1072857,1117039,1126476)