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        }
      ],
      "xlabel": "Time (constructed units)",
      "ylabel": "Polymer conversion fraction",
      "logx": false,
      "logy": false
    },
    {
      "kind": "bar",
      "labels": [
        "Feed",
        "Depolymerize",
        "Recover",
        "Purify",
        "Repolymerize"
      ],
      "series": [
        {
          "label": "Conditional material fraction",
          "y": [
            1.0,
            0.9,
            0.765,
            0.72675,
            0.6540750000000001
          ]
        }
      ],
      "ylabel": "Fraction of starting material"
    }
  ],
  "title": "Active-enzyme exposure and downstream recovery both matter",
  "assumptions": "First-order enzyme deactivation; initial effective conversion rate0.5, no mass transfer/product inhibition. Conditional yields0.9,0.85,0.95,0.9. No polymer or enzyme experiments.",
  "worked": "四阶段联合产率0.9×0.85×0.95×0.9=0.654075；失活模型累计暴露有限，初始速率不能独自决定末点转化。",
  "checks": {
    "closed_loop": 0.6540750000000001,
    "conversion_t2_kd02": 0.5614142287920396
  },
  "generator_source_sha256": {
    "ops/datacenter/editorial_guides/horizons_figures.py": "5ed0031cf4cbcfb7d2d78b4385c8c29200a8312d53744507241da3ca5ca44a9c",
    "ops/datacenter/editorial_guides/deep_figures.py": "158969d9b1f5a4bd13906cf78dd71affc2692df9194593918059d861a6f59c85"
  },
  "source_ids": [
    "h-pet2016",
    "h-pet2022"
  ],
  "formula_source": "Article equations and this versioned script",
  "diagram_nodes": [
    "Defined PET input",
    "Surface accessibility",
    "Active enzyme exposure",
    "Monomer recovery",
    "Purification",
    "Qualified polymer"
  ]
}