|
|
发表于 2010-3-13 14:03:25
|
显示全部楼层
来自: 中国江苏常州
转原帖回复! X' `& m. N% c9 X% |: a7 |
$ P+ V7 a; K( A9 o请看:$ q s! x/ t7 x) x- V
[url]http://cr4.globalspec.com/thread/51795 [/url]# I t4 K" H# m7 W" k# k. v
----------------------------------------------------------------------------------------------2 {0 A4 Z/ V* f# [3 i @
ASME Y14.5-2009:
# o" K d) b# J3 A7 v0 P; f1.6.2 Decimal Inch Dimensioning
$ h% }% v y$ ~' y/ pThe following shall be observed where specifying decimal inch dimensions on drawings:- V" j6 Q6 H1 |6 P
(a) A zero is not used before the decimal point for values less than 1 in.
& ?5 w% X5 R% K(b) ............7 X+ `1 g! @. B- j; R. L/ p% A
-------------------------------------------------------------------------------------------------
. @3 J- X# S; yBut, on the other hand .........
: G; \/ s, U# ]1.6.1 Millimeter Dimensioning
# N% S- ~+ u, RThe following shall be observed where specifying millimeter dimensions on drawings:
, F2 l9 I9 F6 P8 ?3 c' ](a) Where the dimension is less than one millimeter, a zero precedes the decimal point. See Fig. 1-4.% @5 g/ ^5 m4 O( H0 o/ S) D
(b) ... |
|