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DE?? ???? ?? ???
?? 3??? ?? ???? ?? ???? ??? ??? ??.
?? ???? ?? ???? ?? ???? ??? ??? ??? ????: ?? ??.
國家市場監(jiān)督管理總局、中國國家標準化管理委員會, ?? ???? ?? ???
National Metrological Technical Specifications of the People's Republic of China, ?? ???? ?? ???
National Metrological Verification Regulations of the People's Republic of China, ?? ???? ?? ???