ISO 10303-21:1994/Cor 1:1996 工业自动化系统和集成电路.产品数据表示和信息交流.第21部分:执行方法:信息交流结构的清除文本编码.技术勘误表1
Industrial automation systems and integration - Product data representation and exchange - Part 21: Implementation methods: Clear text encoding of the exchange structure; Technical Corrigendum 1