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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 38010.1-2019 |
Spectacle frames and sunglasses electronic catalogue and identification—Part 1:Product identification and electronic catalogue product Hierarchy 眼镜架和太阳镜电子目录与识别 第1部分：产品标识与电子层级目录 |
China National Standards Hierarchy |
 English PDF |
| GB/T 51281-2018 |
Synchronous Digital Hierarchy (SDH) Optical Fiber Transmission System Engineering Acceptance Criteria 同步数字体系（SDH）光纤传输系统工程验收标准 |
China National Standards Hierarchy |
English PDF |
| GB/T 33996-2017 |
Hierarchy and nomenclature of lunar exploration data products 月球探测数据产品分级与命名 |
China National Standards Hierarchy |
English PDF |
| GB/T 24467-2009 |
The rules of constitute Hierarchy for product data dictionary of general mechanical parts and components 通用机械零部件产品数据字典层次结构的构成规则 |
China National Standards Hierarchy |
English PDF |
| GB/T 15409-2008 |
Frame structure for synchronous digital Hierarchy signal 同步数字体系信号的帧结构 |
China National Standards Hierarchy |
English PDF |
| GB/T 16712-2008 |
Characteristics of synchronous digital Hierarchy (SDH) equipment functional blocks 同步数字体系（SDH）设备功能块特性 |
China National Standards Hierarchy |
English PDF |
| GB/T 15940-2008 |
Basic multiplexing structure for synchronous digital Hierarchy signals 同步数字体系信号的基本复用结构 |
China National Standards Hierarchy |
English PDF |
| GB/T 14731-2008 |
Synchronous digital Hierarchy (SDH) bit rates 同步数字体系（SDH）的比特率 |
China National Standards Hierarchy |
English PDF |
| GB/T 16814-2008 |
Methods of measurement for Synchronous digital Hierarchy (SDH) optical fiber cable line system 同步数字体系 (SDH) 光缆线路系统测试方法 |
China National Standards Hierarchy |
English PDF |
| GB/T 15941-2008 |
Requirements for Synchronous Digital Hierarchy (SDH) Optical Fiber Cable Line Systems 同步数字体系（SDH）光缆线路系统进网要求 |
China National Standards Hierarchy |
English PDF |
| GB/T 20187-2006 |
Characteristics of optical transport network Hierarchy equipment functional blocks 光传送网体系设备的功能块特性 |
China National Standards Hierarchy |
English PDF |
| GB/T 20185-2006 |
Optical interface requirements for equipments and systems relating to the synchronous digital Hierarchy 同步数字体系设备和系统的光接口技术要求 |
China National Standards Hierarchy |
English PDF |
| GB/T 4110-1983 |
Pulse code modulation communication system Hierarchy 脉冲编码调制通信系统系列 |
China National Standards Hierarchy |
English PDF |
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