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Karya · work_ieee_y32_9_1972

IEEE Std Y32.9-1972 · Relasi

IEEE Std Y32.9-1972 是电气电子工程师学会的技术标准,题为“American National Standard Graphic Symbols for Electrical Wiring and Layout Diagrams Used in Architecture and Building Construction”;公开目录标为现行(Active),已批准(Approved),著录年份为 1972 年。

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