全部主张 / 机械、电学与发明史
宋代活塞风箱已经解决蒸汽机的阀门问题
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
直接解决了蒸汽机的阀门问题
- 领域
- steam_history
- 涉及对象
- 活塞风箱；蒸汽机阀门
- 声称年代
- 宋代
- 话语角色
- 作者主张
证据连接
来源记录
SRCREF:R005-HMAIN-F2:SRC-F2-001SRCREF:R005-HMAIN-F2:SRC-F2-004SRCREF:R005-HMAIN-F2:SRC-F2-005SRCREF:R005-HMAIN-F2:SRC-F2-008SRCREF:R005-HVIDEO-F2:SRC-F2-007SRCREF:R005-HVIDEO-F2:SRC-F2-010SRCREF:R005-HVIDEO-F2:SRC-F2-012
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 | A record must show valves suited to a steam engine's pressure cycle and not merely a furnace bellows flap or airflow control | input_limited | |
| H_VIDEO | positive_prediction | The apparatus would specify inlet and outlet timing sealing and repeatable steam-cycle operation | input_limited | |
| H_VIDEO | disconfirmer | Sources separating furnace bellows from steam engines and noting missing precision or force disconfirm the equivalence | input_limited | |
| H_VIDEO | alternative_mechanism | Air-bellows valve; later steam-engine development; rhetorical transfer of a component term | input_limited | |
| H_VIDEO | formation_chain | Bellows valve -> steam retention and release -> piston cycle -> work output | input_limited | |
| H_VIDEO | fabrication_or_coordination_scope | not_required_by_claim_logic | not_applicable_by_claim_logic | |
| H_MAINSTREAM | necessary_condition | 所谓“解决阀门问题”须定义为蒸汽机的进排汽时序/密封控制问题，而非风箱单向止回 | mixed | |
| H_MAINSTREAM | positive_prediction | 宋代风箱若有阀，应只预测送风功能；蒸汽机阀机构与热机时序在后世记录中独立出现 | mixed | |
| H_MAINSTREAM | disconfirmer | 若宋代对象具备同等蒸汽介质、压力和阀时序，且有传承链至蒸汽机，主流区分需修正 | input_limited | |
| H_MAINSTREAM | alternative_mechanism | 相同的单向阀原理平行出现；视频把“阀”泛化为所有止回机构 | input_limited | |
| H_MAINSTREAM | formation_chain | 风箱送风阀→与蒸汽机阀比较→检验压力/时序/介质→判断是否同一问题 | mixed | |
| H_MAINSTREAM | fabrication_or_coordination_scope | not_required_by_claim_logic | not_applicable_by_claim_logic |
推理桥梁
H_VIDEOotherinput_limited
A valve in an air device => solved the steam-engine valve problem
H_MAINSTREAMothermixed
必须桥接阀的功能、工作介质、时序、输出效果，不能只看有无阀
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。