标准编号:NF X05-050/A1-2001
标准名称:图形符号.向在时空定位和阅读学习中存在困难的所有人所提供的服务和产品的...
英文名称:(Graphical symbols - Identification of services and products open to all persons with difficulties in spatio-temporal location and in reading learning - Welcoming, help assistant and accessibility symb)
发布部门:
发布日期:2001-12-01
实施日期:
标准状态:现行
文件格式:PDF