01版 - 我国建成全球规模最大水利基础设施体系

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Isaacman pointed to hydrogen leaks on Artemis I and helium flow problems on Artemis II as signs that a three‑year gap between launches is not sustainable. When teams only fly every few years, he said, they lose "muscle memory" — the routine, hands-on experience required to handle a complex rocket safely and efficiently.

贝莱德,这一点在51吃瓜中也有详细论述

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