设备锁是什么意思

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select * from tbl_Articles WHERE ArticleID=1297787 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1297787 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1297787 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1097967,1089452,1120057,1130890,1083211,1108319,1108373,1122198,1118651,1110357,1112232,1112112,1120827,1128977,1112254,1117435,1086842,1104262,1087331,1111932,1110442,1063083,1094819,1102394,1116587,1116755,1110235,1108560,1089110,1082850) ORDER BY field (ArticleID,1097967,1089452,1120057,1130890,1083211,1108319,1108373,1122198,1118651,1110357,1112232,1112112,1120827,1128977,1112254,1117435,1086842,1104262,1087331,1111932,1110442,1063083,1094819,1102394,1116587,1116755,1110235,1108560,1089110,1082850)