辐射(radiation)是广泛存在于宇宙间和人类生存环境中的自然现象。随着现代科学技术的进步,核技术在医疗、工农业、能源、动力、武器等领域得到越来越多的应用,从而使人们接触辐射的机会日益增多,对于辐射损伤防治的研究也受到越来越多的重视。多糖(polysaccharide)作为一种天然活性物质,具有 Radiation (radiation) is a natural phenomenon that exists widely in the universe and human environment. With the progress of modern science and technology, nuclear technology has been applied more and more in the fields of medical treatment, industry and agriculture, energy, power and weapons, so that people have more and more opportunities for exposure to radiation. Research on the prevention and treatment of radiation damage has also been more and more The more attention to it. As a natural active substance, polysaccharide has