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Credit: Timothy Werth / Mashable
，这一点在体育直播中也有详细论述
Isaacman also said the agency would halt work to develop a more powerful version of the SLS rocket's upper stage, known as the Exploration Upper Stage, or EUS. Instead, NASA will go forward with a "standardized," less powerful stage but one that will minimize major changes between flights and utilize the same launch gantry.
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。业内人士推荐体育直播作为进阶阅读
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