- 最新国家标准及民用航空公共信息符号与执行标准
- Latest national standards and civil aviation public information symbols and executive standards
- 国际残疾人公共信息标识图形符号与实施标准
- International Graphic Symbols and Implementation Standards for Public Information Signs for Persons with Disabilities
- 最新国家标准及民用航空公共信息符号与贯穿标准
- The latest national standards and civil aviation public information symbols and penetration standards
