这一个问题被来自火箭旋转稳定发动机和主发动机的气体加剧，在那里他们的力量矢量对抗。
This problem was exacerbated by gas pressure from the rocket's spin motor and main motor where their force vectors were in opposition.
本文的研究成果和结论对旋转固体火箭发动机飞行器的章动不稳定性问题具有十分重要的意义和实用价值。
The results achieved and the conclusions drawn in this thesis are of great importance and applicable in the nutation instability phenomenon of solid rocket motor spacecraft.
火箭是无控-飞行、旋转-和-翼稳定火箭，而且没有制导系统。
The rockets are free-flight, spin-and-fin stabilized rockets, and do not have guidance systems.
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