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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.
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2025年12月1日,由国家市场监督管理总局、工业和信息化部联合修订的《电动自行车安全技术规范》(GB 17761-2024)(即“新国标”)过渡期正式结束,旧国标电动车全面禁售。新国标再次明确:电动自行车最高设计车速不得超过25公里/小时,一旦超过,电机将停止提供动力输出。
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