"countDelta": -1
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，这一点在旺商聊官方下载中也有详细论述
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.，这一点在旺商聊官方下载中也有详细论述
Фото: Staff Photographer / Reuters