fankai 发表于 2018-5-18 21:53:25
感谢楼主分享IEC 81346-1-2009 Industrial systems, installations and equipment and industrial products – Structuring principles and reference designations – Part 1: Basic rules,和IEC 81346-2-2009 Industrial systems, installations and equipment and industrial products – Structuring principles and reference designations – Part 2: Classification of objects and codes for classes。info.cqw 发表于 2018-7-30 09:11:35
多谢了!多谢了!多谢了!多谢了!woodych2013 发表于 2019-2-22 21:52:10
谢谢楼主分享,已经下载:)hgundas 发表于 2019-9-28 06:17:17
謝謝樓主的分享!!!!!
guyuming4 发表于 2020-7-1 05:47:44
感谢楼主分享,每个分享的楼主都很帅气