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请看：7 j5 u9 L7 q8 m3 g9 x# t4 L [url]http://cr4.globalspec.com/thread/51795 [/url]0 j/ L) a: K6 P
---------------------------------------------------------------------------------------------- 5 Z9 F ^: i/ j* q) IASME Y14.5-2009:0 p9 v& w1 U$ M, I# E; E' }5 L2 v
1.6.2 Decimal Inch Dimensioning% Q3 N4 X) G6 p: ^8 s! e m8 c) P
The following shall be observed where specifying decimal inch dimensions on drawings: c5 f! F: A5 p7 O0 v(a) A zero is not used before the decimal point for values less than 1 in.' X& z$ Y$ D$ Q/ B# V
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1.6.1 Millimeter Dimensioning2 K$ i' I# `+ T+ {# k. j0 r
The following shall be observed where specifying millimeter dimensions on drawings: 4 P E+ [) j# s% a* C9 t$ p(a) Where the dimension is less than one millimeter, a zero precedes the decimal point. See Fig. 1-4. 8 l8 d& t' \7 b3 m(b) ...
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发表于 2010-3-13 13:19:40
发表于 2010-3-13 16:06:59
