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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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, u5 N# l: `8 K! c6 X! G" _+ B$ ^ [url]http://cr4.globalspec.com/thread/51795 [/url]2 e! \) C1 a" t5 c" d
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ASME Y14.5-2009:
4 @' S! O3 L2 s9 L1.6.2 Decimal Inch Dimensioning+ | j! O, n- G7 W- J2 X7 t
The following shall be observed where specifying decimal inch dimensions on drawings:
1 `0 D2 g; A5 Q2 N8 H3 P0 K(a) A zero is not used before the decimal point for values less than 1 in.! V4 a0 q' e) M; f" l2 q8 x
(b) ............
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) @1 e' `7 B$ V# cBut, on the other hand .........6 |2 j0 ]' L: R, U/ w7 j4 g
1.6.1 Millimeter Dimensioning
& i4 N0 h O: H2 d. MThe following shall be observed where specifying millimeter dimensions on drawings:& C0 j L$ O' u+ f
(a) Where the dimension is less than one millimeter, a zero precedes the decimal point. See Fig. 1-4., ]3 I+ ?, y+ j% S
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发表于 2010-3-13 16:06:59
