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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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( b. c- _- w9 T' T' m, A9 O [url]http://cr4.globalspec.com/thread/51795 [/url]
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6 y F+ x8 I6 P/ O0 L5 \2 DASME Y14.5-2009:
' B/ G0 Q3 B7 W3 m" K1.6.2 Decimal Inch Dimensioning
' [4 {. u9 G4 t9 {The following shall be observed where specifying decimal inch dimensions on drawings:5 J, L' T+ N3 S' u, U( t
(a) A zero is not used before the decimal point for values less than 1 in.
( S! G( L; I2 }/ m(b) ............
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1 G }/ S" w+ Z3 u- S4 D- mBut, on the other hand ......... {) @. r0 K5 G6 a1 G( J
1.6.1 Millimeter Dimensioning
. ?% v/ ?. Q v$ C. [9 R: @8 pThe following shall be observed where specifying millimeter dimensions on drawings:: L) h) v3 }3 N
(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
