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.
Фото: Сергей Бобылев / ТАСС
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高通膨（通脹）使許多伊朗人連基本生活必需品都愈發難以負擔。
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