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DE3?? ?? ???
?? 92??? 3?? ?? ???? ??? ??? ??.
?? ???? 3?? ?? ???? ??? ??? ??? ????: ??? ???, ?? ??, ?? ??, ??? ??? ?? ??(OSI), ??, ??, ?? ? ?? ??, ?? ? ?? ??? ??, ?? ?, ?? ? ??, ???, ??? ? ??? ?????, ?? ?? ??? ? ?? ????, ??? ? ?? ??.
SCC, 3?? ?? ???
American National Standards Institute (ANSI), 3?? ?? ???
American Water Works Association (AWWA), 3?? ?? ???
Professional Standard - Recommended Standards for Engineering Construction, 3?? ?? ???
British Standards Institution (BSI), 3?? ?? ???
Professional Standard - Construction Industry, 3?? ?? ???
Lithuanian Standards Office , 3?? ?? ???
Danish Standards Foundation, 3?? ?? ???
European Committee for Standardization (CEN), 3?? ?? ???
US-FCR, 3?? ?? ???
API - American Petroleum Institute, 3?? ?? ???
Association Francaise de Normalisation, 3?? ?? ???
Beijing Provincial Standard of the People's Republic of China, 3?? ?? ???
AENOR, 3?? ?? ???
住房和城鄉(xiāng)建設(shè)部, 3?? ?? ???
ZA-SANS, 3?? ?? ???
Group Standards of the People's Republic of China, 3?? ?? ???
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, 3?? ?? ???
Hunan Provincial Standard of the People's Republic of China, 3?? ?? ???
International Telecommunication Union (ITU), 3?? ?? ???
U.S. Military Regulations and Norms, 3?? ?? ???
SE-SIS, 3?? ?? ???
German Institute for Standardization, 3?? ?? ???
AT-ON, 3?? ?? ???
CEN - European Committee for Standardization, 3?? ?? ???
Professional Standard - Post and Telecommunication, 3?? ?? ???
Korean Agency for Technology and Standards (KATS), 3?? ?? ???
International Organization for Standardization (ISO), 3?? ?? ???
(U.S.) Telecommunications Industries Association?, 3?? ?? ???
Anhui Provincial Standard of the People's Republic of China, 3?? ?? ???