{
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  "dek": "记者今天了解到，市场监管总局(国家标准委)近日批准发布《矿山隐蔽致灾因素普查规范》《地下矿山用锂离子动力电池技术条件》等4项矿山安全强制性国家标准，为矿山风险防控与设备安全提供统一的强制性技术标尺。该批标准由国家矿山安监局组织制定，将于2027年3月1日起实施。",
  "desk": "rights",
  "event_id": "event-7273200c0e1c1229afd5f5a1",
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      "title": "从源头排查管控风险 4项矿山安全强制性国家标准发布",
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      "source_name": "China News Service",
      "title": "从源头排查管控风险 4项矿山安全强制性国家标准发布",
      "url": "https://www.chinanews.com.cn/gn/2026/09-14/10695960.shtml",
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  "lead": false,
  "lead_reason": "Current single-source metadata is retained but not promoted as a lead.",
  "limitations": [
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    "The evidence-strength label describes source structure, not truth, intent, impact, or causation.",
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    "Title-similarity clustering can miss differently worded or cross-language accounts and can join closely worded updates.",
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  "updated_at": "2026-09-14T02:23:20Z",
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