用产品经理的心态对待咖啡，不断迭代好喝的咖啡。公众号：咖啡平方
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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在这个对价格极度敏感的区间里，不犯错就是最大的美德。