{
  "contract_hash": "7d6ed93e40ad04ac786d7c91e5b9d248879b3b298546a15672d2d2e8f8f3a5af",
  "requirements": [
    {
      "acceptance_claims": [
        {
          "claim_id": "claim_001",
          "claim_kind": "solid_count_equals",
          "expected": {
            "value": 1
          }
        },
        {
          "claim_id": "claim_002",
          "claim_kind": "single_connected_body",
          "expected": {}
        },
        {
          "claim_id": "claim_003",
          "claim_kind": "bbox_rank_dimension_mm",
          "expected": {
            "rank": "minimum",
            "tolerance_mm": 0.1,
            "value": 10
          }
        },
        {
          "claim_id": "claim_004",
          "claim_kind": "collinear_through_bore_chain",
          "expected": {
            "adjacent_distances_mm": [
              60,
              80
            ],
            "diameter_mm": 12,
            "tolerance_mm": 0.1
          }
        },
        {
          "claim_id": "claim_005",
          "claim_kind": "through_cylindrical_bore",
          "expected": {
            "count": 3,
            "diameter_mm": 12,
            "tolerance_mm": 0.1
          }
        },
        {
          "claim_id": "claim_006",
          "claim_kind": "visual",
          "expected": {
            "description": "Three-hole connecting rod with three collinear 12 mm bores spaced 60 mm and 80 mm apart, 10 mm thick, and 32 mm outer circular lobes blended smoothly into a continuous outer profile."
          }
        }
      ],
      "assumptions": [
        "厚度方向为Z轴。",
        "“各段外轮廓平滑连接”表示外轮廓在三个32 mm外圆之间连续过渡，无断裂或尖角。"
      ],
      "draft_id": "draft_001",
      "requirement_id": "req_001",
      "source_ids": [
        "src_001"
      ],
      "statement": "生成一个三孔机械连杆：三个孔中心共线，相邻孔中心距分别为60 mm和80 mm，三个孔直径均为12 mm，零件厚度为10 mm，外形在每个孔周围形成直径32 mm的外圆并且各段外轮廓平滑连接。"
    }
  ],
  "schema_version": "cad.requirements-contract.v1",
  "task_id": "cad_ca329b930de3"
}