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    {
      "id": "power-feedwater-elbow-r2",
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    {
      "id": "power-feedwater-elbow-r3",
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      "length": 1.8,
      "radius": 1.35,
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      "source": "https://www.energychina.press/article/doi/10.16516/j.gedi.issn2095-8676.2019.04.007",
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      "id": "feedwater",
      "zh": "高压给水",
      "en": "High-pressure feedwater",
      "diameter": 0.45,
      "thickness": 0.05,
      "temperature": 280,
      "young": 195000000000.0,
      "alpha": 1.25e-05,
      "source": null,
      "basis": "Author-selected thick-wall research section; not a plant specification."
    }
  ]
}