{
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  "dek": "中新网北京11月10日电 (记者 孙自法)记者11月10日从中国科学院近代物理研究所获悉，该所和先进能源科学与技术广东省实验室联合团队历时近十年持续攻关，成功研制出国际首台无液氦铌三锡薄膜射频超导电子加速器，并实现稳定载束。",
  "desk": "rights",
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      "source_name": "China News Service",
      "title": "国际首台！中国团队研制成功无液氦铌三锡薄膜射频超导电子加速器",
      "url": "https://www.chinanews.com.cn/gn/2026/11-10/10729459.shtml",
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  "lead": false,
  "lead_reason": "Current single-source metadata is retained but not promoted as a lead.",
  "limitations": [
    "Palimpsest retained only feed title, canonical link, time, and a bounded plain-text excerpt; it did not fetch the article body.",
    "The evidence-strength label describes source structure, not truth, intent, impact, or causation.",
    "Declared instrument links are topical pointers until a separate scan or economic observation is joined by time and method.",
    "Title-similarity clustering can miss differently worded or cross-language accounts and can join closely worded updates.",
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