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[讨论] 话说用喷气发动机做助推火箭真心比固体火箭助推好用啊 |
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点评
其实差不多吧~~~几个也就一亿多美元,就是推力不够啊~~
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点评
估计是燃料使用不均,重心偏移。
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点评
几十秒就出大气了啊?真快~
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