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分析了喷喉烧蚀计算的各种方法，并用实例比较了各种计算方法的优劣。理论分析和计算结果表明，用平均膨胀比与初始膨胀比计算出的理论真空比冲之比，或在平均膨胀比与初始膨胀比下按一维两相平衡流计算出的真空比冲之比来计算喷喉烧蚀效率较好。
The various methods of spray throat ablation are analyzed, and the advantages and disadvantages of various calculation methods are compared with examples. Theoretical analysis and calculation results show that the ratio of the theoretical vacuum ratio calculated by the average expansion ratio and the initial expansion ratio or the ratio of the vacuum ratio calculated by the one-dimensional two-phase equilibrium flow at the average expansion ratio and the initial expansion ratio To calculate the spray throat ablation efficiency is better.