摘自ASME Y14.5M-1994 - G9 j2 [9 ~) y5 B1.3.22 Regardless of Feature Size (RFS):The term used to indicate that a geometric tolerance or datum reference applies 0 x& R$ w+ _2 W) C) J' D# D
at any increment of size of the feature within its size tolerance.. z, ?! ^9 P) T8 _5 c, L1 b
$ O; b" v; T+ e; r+ N# E* L( o
论坛里有中文版的解释http://www.3dportal.cn/discuz/viewthread.php?tid=119393&highlight=Y14.5M 8 W: H/ B* ~* D5 l* ~1 B8 U# l) h ! N# p4 P4 u6 b$ {% A2 A[ 本帖最后由 zhanghuihbh 于 2007-6-13 14:47 编辑 ]