fr-4是什么材质

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select * from tbl_Articles WHERE ArticleID=3540852 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3540852 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3540852 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3540687,3540791,3541181,3540523,3543011,3541098,3541064,1049094,3530304,3540766,3542168,3527112,3542504,3542050,3544032,1065163,3540540,3541506,3540802,3542644,3543609,3540570,3541903,3541637,3542068,3541913,3527321,3543978,3543240,3541395) ORDER BY field (ArticleID,3540687,3540791,3541181,3540523,3543011,3541098,3541064,1049094,3530304,3540766,3542168,3527112,3542504,3542050,3544032,1065163,3540540,3541506,3540802,3542644,3543609,3540570,3541903,3541637,3542068,3541913,3527321,3543978,3543240,3541395)