光纤多少米信号会衰减

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SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1132739,2023784,1383405,1060355,214651,1112676,231263,1131233,1128189,1645538,1128908,1792007,1051803,1063229,366234,1044609,1126524,1923943,1123112,2126337,1123893,1128353,1381649,1052017,2986029,2016021,1045805,1756232,1771276,1129673) ORDER BY field (ArticleID,1132739,2023784,1383405,1060355,214651,1112676,231263,1131233,1128189,1645538,1128908,1792007,1051803,1063229,366234,1044609,1126524,1923943,1123112,2126337,1123893,1128353,1381649,1052017,2986029,2016021,1045805,1756232,1771276,1129673)