当前紧张局面集中在钇、钪等稀土家族中的“小众元素”上，这些元素在国防技术、航天工业及半导体制造中虽用量极小，却起着难以替代的关键作用，而其生产几乎完全依赖中国。
tasks = append(tasks, t)，更多细节参见旺商聊官方下载
2026-02-28 08:00:00，这一点在safew官方版本下载中也有详细论述
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