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American Standard Abbreviations for Use on Drawings
American Standards Association. Committee on Standardization of Graphical Symbols and Abbreviations for Use on Drawings, Z32
其他書名
Approved December 18, 1946
出版
American Standards Association
, 1947
URL
http://books.google.com.hk/books?id=OiQAidCK1t0C&hl=&source=gbs_api
