搜索 - 科创

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估计是点火药把火箭先推到半空，然后主燃料才产生有效推力。在主燃料产生有效推力之前火箭由于重力已经开始倾斜。

还没出现过淬灭完好保存的情况地面试车出现的情况可能是一阶段和二阶段之间的燃料层厚了一点并且喷燃比略小导致第一段燃料燃烧完成后转变为端面燃烧加之喷燃比不够使燃烧室压力下降 RAP属于中压型燃料燃烧压力不足的情况下燃烧速度将大幅下降由此引发连锁反映以我的观点看电弧点火这种方式没有问题但是点火药是必不可少的