幸福小筑（💯互Fo❗️❗️）(@mengwei73526359):一子级搭载七台国产YF100K液氧煤油发动机，二级配备自研YF219液氧甲烷发动机，动力系统实现全国产化 Its first stage uses seven homemade YF100K kerosene engines, while the second stage is equipped with self-developed YF219 methalox engine, achieving full domestic power system.

幸福小筑（💯互Fo❗️❗️）

@mengwei73526359

分享美食美景🌸🌸诚信互FO💯💯💯必回，定期清理，平台限制，虽迟必关!!🌹🌹🌹🌹

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幸福小筑（💯互Fo❗️❗️）@mengwei73526359

2026.07.12 13:30

一子级搭载七台国产YF100K液氧煤油发动机，二级配备自研YF219液氧甲烷发动机，动力系统实现全国产化 Its first stage uses seven homemade YF100K kerosene engines, while the second stage is equipped with self-developed YF219 methalox engine, achieving full domestic power system.