中国民营火箭有多厉害?你先得弄明白这俩概念 - 创客 - 新京报:2021-5-31 · 今天(5月31日)下午,在北航沙河校区西门羽流试验区,北京星际荣耀空间科技有限公司(以下简称“星际荣耀”)进行了15吨级液氧甲烷火箭发动机燃气 ...

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