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疏松热解炭层是高温气冷堆包覆燃料颗粒的主要组成部份，本文介绍了疏松热解炭层对高温气冷堆技术研究和发展的贡献，它在包覆燃料颗粒中的功能及对它的要求，密度低于５０％理论密度的疏松热解炭层的包覆工艺研究和结果。
Loose pyrolytic carbon layer is the main component of high temperature gas-cooled reactor-coated fuel particles. This paper introduces the contribution of unconsolidated pyrolytic carbon layer to the research and development of high-temperature gas-cooled reactor technology, its function in coating fuel particles and Its requirements, the density of less than 50% theoretical density of the porous pyrolytic carbon coating technology research and results.