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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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6 G7 [8 O4 w3 l [url]http://cr4.globalspec.com/thread/51795 [/url] R J: x9 G' K- b1 \4 x: K. t# l
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8 N$ }- f% @9 u1 N) E3 XASME Y14.5-2009:
, i, X( r3 g3 Y2 K# B$ a1.6.2 Decimal Inch Dimensioning
- {: Z! h/ ~6 {7 f7 c! P, dThe following shall be observed where specifying decimal inch dimensions on drawings:
( J, v& }- K. ^# S9 L(a) A zero is not used before the decimal point for values less than 1 in.: _, Q9 [2 n- Y5 g
(b) ............& i6 T' { U( m0 K
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- T2 z1 [; F5 y x" z0 m, LBut, on the other hand .........+ d$ V4 p+ M) ?) L* m' N, ]
1.6.1 Millimeter Dimensioning
5 n, e% \4 M! ZThe following shall be observed where specifying millimeter dimensions on drawings:" ]+ y+ S' T' p. D- M& E1 D; I
(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
