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His thesis at the Navy Academy was in the unheard-of topic of liquid-fuel engines. After graduation, he hoped to specialise in this pioneering new technology.，这一点在搜狗输入法下载中也有详细论述
To fix that, NASA is redefining the Artemis campaign as a step‑by‑step test program. The agency now aims to launch roughly once every 10 months, standardize its rocket configuration, and rebuild in‑house expertise that has withered over time.