How can a rocket engine that generates 5,000 degree steam and 13,800 pounds of thrust form icicles at the rim of its nozzle?

一个能制造出5000度高温蒸汽和13800磅推力的火箭推进器，是怎样使喷口边缘结冰的呢？

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Ablation prediction of solid rocket motor nozzle is an important link for nozzle structure analysis.

固体火箭发动机喷管的烧蚀预示是喷管结构分析的重要一环。

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Good references for solid rocket motor nozzle design and research are provided.

可为固体火箭发动机喷管的设计与研究提供有效参考。

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But that launch too was less than perfect, with technicians during the final days before liftoff deciding to trim off four feet of rocket-motor nozzle extensions with metal shears to address an unexpected problem with cracking.

FORBES: The Case Against SpaceX, Part II

On a hot June evening at a ramshackle former gliderport 30 miles east of Dallas, John Carmack's rocket engine lit up with its blue flame spewing from the nozzle.

FORBES: Magazine Article

M-5 rocket last month seems to have been caused by a damaged graphite nozzle in the first-stage engine.

ECONOMIST: The land of disappointments