全部主张 / 机械、电学与发明史
1770年交书后的第二年，瓦特改良出蒸汽机
判定边界
双方证据链未闭合（本轮），不是双方等真，也不是给视频主张背书。
视频原话摘要
第二年瓦特就改良出蒸汽机了
- 领域
- steam_history
- 涉及对象
- 瓦特；蒸汽机
- 声称年代
- 1771
- 话语角色
- 作者主张
证据连接
来源记录
SRCREF:R005-HMAIN-F2:SRC-F2-004SRCREF:R005-HMAIN-F2:SRC-F2-005SRCREF:R005-HMAIN-F2:SRC-F2-006SRCREF:R005-HMAIN-F2:SRC-F2-007SRCREF:R005-HMAIN-F2:SRC-F2-008SRCREF:R005-HVIDEO-F2:SRC-F2-013SRCREF:R005-HVIDEO-F2:SRC-F2-014SRCREF:R005-HVIDEO-F2:SRC-F2-015
待解问题
报告锚点：S05.2 · 研究 lane：F2_MECHANICAL_ELECTRICAL
双轨条件矩阵
H_VIDEO 与 H_MAIN 独立列出必要条件、正向预测、反证条件、替代机制、形成链和协调伪造规模。
| 模型 | 条件类型 | 条件 | 评估 | 关联证据 |
|---|---|---|---|---|
| H_VIDEO | necessary_condition | The 1770 handover and 1771 improvement must refer to the same causal object and a dated Watt improvement after the handover | input_limited | |
| H_VIDEO | positive_prediction | A 1771 design or record would follow the handover and identify the borrowed mechanism | input_limited | |
| H_VIDEO | disconfirmer | Official museum records date Watt's separate condenser to 1765 and patent to 1769, before the proposed handover; this breaks the stated timing for that improvement | input_limited | |
| H_VIDEO | alternative_mechanism | Another later Watt improvement; imprecise “改良” date; post hoc chronology | input_limited | |
| H_VIDEO | formation_chain | Handover 1770 -> access -> 1771 design -> engine output | input_limited | |
| H_VIDEO | fabrication_or_coordination_scope | not_required_by_claim_logic | not_applicable_by_claim_logic | |
| H_MAINSTREAM | necessary_condition | 1771“改良”须指明哪一部件/机型及记录日期；此前已有瓦特实验/专利日期必须保留 | input_limited | |
| H_MAINSTREAM | positive_prediction | 可观察到1760s–1770s连续实验、专利或制造记录，1771若有则为链中一节点 | input_limited | |
| H_MAINSTREAM | disconfirmer | 若核心改进在1765或1769已完成且1771只是继续应用/专利授权，视频的“第二年改良”不成立 | input_limited | |
| H_MAINSTREAM | alternative_mechanism | 相对年份算法错；把商业部署/专利/实验分别当同一事件 | input_limited | |
| H_MAINSTREAM | formation_chain | 前瓦特机→瓦特早期实验→关键改进日期→专利/生产→后世归因 | input_limited | |
| H_MAINSTREAM | fabrication_or_coordination_scope | not_required_by_claim_logic | not_applicable_by_claim_logic |
推理桥梁
H_VIDEOotherinput_limited
Temporal succession => causal transmission
H_MAINSTREAMotherinput_limited
桥接交书年份、具体改进记录和1771事件，不能只做日期相减
审计字段与说明
- 终态方法
- dual_track_evidence
- 音频核验
- two_asr_surface_agreement
- 研究备注
- 冻结命题与矩阵终态逐 ID 对齐；非事实 lane 不转写为历史胜负。