above-ground installation
mobile ground radio installation 地面流动无线电台 above-ground installation 地上敷设 Aeronautical ground lighting electrical installation 机场照明电气设施 ..
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地上、地下工程管线规划布局、设计与敷设要严格执行有关安全生产的法律、法规和标准。
The layout, design and installation of pipelines on the ground and underground projects shall strictly enforce the laws, regulations and standards concerning safety in production.
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