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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 42332-2023 |
Specifications for surveying and mapping of topographic maps of islands and surrounding sea areas {译} 海岛及周边海域地形图测绘规范 |
China National Standards surround |
 English PDF |
| GB/T 31733-2015 |
Technical regulations on urban surroundings protection forests construction 城乡环境保护林建设技术规程 |
China National Standards surround |
English PDF |
| GB/T 22122-2008 |
Methods of measurement of surround audio for digital TV 数字电视环绕声伴音测量方法 |
China National Standards surround |
English PDF |
| GB/T 17726-1999 |
Small craft--Electrical devices--Protection against ignition of surrounding flammable gases 小艇 电气装置 防止点燃周围可燃性气体的保护 |
China National Standards surround |
English PDF |
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