
QUANTITIES AND UNITS - PART 2: MATHEMATICAL SIGNS AND SYMBOLS TO BE USED IN THE NATURAL SCIENCES AND TECHNOLOGY (ISO 80000-2:2009)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
QUANTITIES AND UNITS - PART 2: MATHEMATICAL SIGNS AND SYMBOLS TO BE USED IN THE NATURAL SCIENCES AND TECHNOLOGY (ISO 80000-2:2009)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻