In the context of China’s ‘carbon peak and carbon neutrality’ strategy, cold energy, as a new type of green energy, has received widespread attention and emphasis. A series of innovative cold energy utilization technologies have emerged in response. However, the cold energy industry currently faces challenges such as low utilization rates, lack of top-level planning, insufficient innovation in key technologies, and limitations on large-scale applications. This article summarizes and forecasts the key technologies related to the comprehensive and efficient use of cold energy, cryogenic materials, and pipeline equipment. As an essential infrastructure of the cold energy industry, the pipeline system is analyzed in terms of its operating conditions, potential risks and failure modes, and key technologies. The article identifies the challenges faced by cold energy industry pipeline technologies and the development trends of cold energy utilization pipeline technology. It proposes recommendations for the efficient use of cold energy and the development of its pipeline systems, aiming to provide robust support for the high-quality development, efficient and stable operation, safety assurance, and energy conservation and emission reduction of the cold energy industry.

The lunar base is a crucial hub for future space exploration and resource development, and its successful operation relies on reliable and efficient communication and navigation systems. Therefore, lunar base communication and navigation technology occupies strategic high grounds where major nations are vying for supremacy. This paper summarizes the lunar environment and the status of lunar base construction and briefly introduces the surface environment and lava tube environment. It also discusses lunar base construction and its constituent elements, systematically reviews the development status of lunar communication and navigation technology in China and abroad, along with the critical issues and challenges, and presents future trends in lunar base communication and navigation technology. On this basis, countermeasures are proposed, including low-latency optical communication technology, autonomous navigation technology, and artificial intelligence algorithms. These recommendations aim to support the development of lunar base communication and navigation systems with independent intellectual property rights, promote self-reliance and self-improvement in this field, and contribute to the establishment of a spacefaring nation.