什么叫单面条和双面条内存条

页面:/news/view-3138322/ | 耗时:0.7470 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=3138322 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3138322 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3138322 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1048474,1071199,1060887,1060503,1079227,1080827,1062392,1073274,997072,1073146,1124117,1069505,1070977,1055039,1116401,1071341,1071972,1071055,1055097,1079888,1063519,1077569,1083421,1079131,1014587,1066704,1067667,1076554,1084823,1063115) ORDER BY field (ArticleID,1048474,1071199,1060887,1060503,1079227,1080827,1062392,1073274,997072,1073146,1124117,1069505,1070977,1055039,1116401,1071341,1071972,1071055,1055097,1079888,1063519,1077569,1083421,1079131,1014587,1066704,1067667,1076554,1084823,1063115)