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“十五五”时期，战略机遇和风险挑战并存、不确定难预料因素增多。越是形势复杂，越要沉下心来踏实干。越是换届之时，越要刹住政绩冲动。。业内人士推荐Line官方版本下载作为进阶阅读
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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.