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发表于 2010-3-13 14:03:25
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来自： 中国江苏常州
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[url]http://cr4.globalspec.com/thread/51795 [/url]- T0 f3 o* b% q7 w+ h# l4 w
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ASME Y14.5-2009:$ i. J5 n' l! {+ x5 q
1.6.2 Decimal Inch Dimensioning
4 U8 w! b% d5 _% e/ _; KThe following shall be observed where specifying decimal inch dimensions on drawings:
8 g1 |$ e; ?* {/ f. P# [/ H5 C(a) A zero is not used before the decimal point for values less than 1 in.1 V+ L% h3 S1 P% f2 E
(b) ............
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) ] Z% G4 [. C0 d, wBut, on the other hand ........., B, Y: V+ Q1 U2 s. {) e* `; t
1.6.1 Millimeter Dimensioning0 L; ]! c: G) L% _- M
The following shall be observed where specifying millimeter dimensions on drawings:/ e, g9 e# }1 B
(a) Where the dimension is less than one millimeter, a zero precedes the decimal point. See Fig. 1-4.
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发表于 2010-3-13 16:06:59
