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IEC 81346-1 ed1.0
Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules
IEC 81346-2 ed1.0
Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 2: Classification of objects and codes for classes 作者: liuxilin1215 时间: 2014-6-9 17:33:31