引用第5楼aji于2009-05-08 22:13发表的 : : Z- f" c4 B ]( Y* {! o同样是尺寸的问题，请教下：* ^8 d! E1 q) _/ A' M/ @5 z
该如何去理解21.9max OR 27.0min呢？
' I" g0 C4 m/ R0 |& x8 n
之前有讨论。是可以21.9max 或 27.0min， 但尺寸不可以在21.9至27.0之间。作者: 孟云房 时间: 2009-5-10 23:10
†Dimensions without tolerances are nominal. ' M' R" L' P' F: u ESamples are to be checked with the gauge specified7 I# T1 |* u# E8 s3 Q
in Appendix A, Appendix B or Appendix F, as / a8 t( W8 E; q+ Y: v6 `6 Gappropriate. ( O# {8 E% t9 S# C8 F* m# a" A# H, ` t4 }( ~1 Y6 T/ P, U H3 q
用量规检查。作者: 孟云房 时间: 2009-5-10 23:12
4 The less than 21.9 mm and greater than 27 mm dimensions have been specified to allow sideby-side use, without jamming, of plugs and equipment with integral pins in adjacent socketoutlets if both are less than 21.9 mm, and to prevent improper use, such as jamming, if one, or ) S/ n8 F2 R# m9 P6 C: C( ~+ E; Z* Hboth, are greater than 27 mm. This is based on the minimum 44 mm centre-to-centre distance 7 g7 z0 c0 t+ w$ R3 Q j9 fbetween adjacent socket-outlets as required by Clause 3.6.2.9 r5 c& Z; _* D2 u
' ~0 p7 t- ~6 z. U0 ^
这个是21.9max OR 27.0min的解释，见图2.1的注。