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transportation standards
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transportation standards
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transportation standards
交通运输标准
对交通运输业的重复性活动和概念所制定且须遵守的统一规定或准则。分为铁路、公路、水运、民航和邮政等每种运输方式相关领域的单一运输方式标准,以及两种及以上运输方式相关领域甚至交通运输业共同遵守或使用的综合交通运输标准。
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urban gas supply system
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urban geoenvironment monitoring
urban geographical information system
urban geographical theories of Chinaurban geographical theories of China
urban geological hazard chain
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urban geological problems
urban geological resources
urban geological survey
urban geomorphology
urban governance
urban greening
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urban green space index
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urban green space structure layout
urban green space system
urban green space system of Baoji
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