Elon Musk: @ajtourville @ulalaunch @SpaceX 哇，9 年前。令人惊讶的是，美国当时依赖俄罗斯发动机来执行国家安全任务！

Posted on 2023-03-01

原推：@ajtourville @ulalaunch @SpaceX Wow, 9 years ago. Amazingly, the US was dependent on Russian engines for national security missions back then!
https://twitter.com/elonmusk/status/1630656914466938881