![]() Rail transit-Management and command/control systems for urban rail and urban rail tranSportation-Part 1: System principles and basic concepts 轨道交通-市域铁路和城轨交通运输管理和指令/控制系统-第1部分:系统原理和基本概念 |
![]() TranSport packaging Reusable plastic turnover boxes Part 1: General requirements 运输包装 可重复使用的塑料周转箱 第1部分:通用要求 |
![]() Classification of Sports venues Part 5: Classification and assessment of ski resorts 体育场所等级的划分 第5部分:滑雪场所星级划分及评定 |
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