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研制出了高炭化率的新型烧蚀树脂S-157酚醛和S－158有机硅改性酚醛，其玻璃纤维复合材料应用于高工作压力固体火箭发动机烧蚀冲刷喷管，满足了使用要求。
Developed a new type of ablative resin S-157 phenolic resin and S-158 modified phenolic resin with high carbonization rate. The glass fiber composite material is applied to ablation flushing nozzle of solid rocket motor with high working pressure to meet the requirements of application.