The third chapter is civil air defense works, which mainly stipulates the division of tasks for civil air defense, the guarantee of construction, maintenance and management, peacetime use, safety protection
The heat consumption of heating is related to the heat demand of building heating determined by the building insulation level, and also related to the operation status of heating system.
Museums are social service institutions established for the collection, research, protection, display, and dissemination of human and natural history, human achievements, natural wonders, social memories, and more. In addition to