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{
  "sample_id": 263,
  "geometry_type": "nurbs",
  "geometry_parameters": {
    "type": "nurbs",
    "n_control_x": "7",
    "n_control_y": "3",
    "max_height": 0.15,
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  "rq_target": 0.001514890977146196,
  "rq_actual": 0.0015148909771461958,
  "ra_actual": 0.0012216566746995046,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "extreme_pitting_coalescence",
  "method": "hybrid",
  "grid_resolution": [
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  ],
  "physical_dimensions": [
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  ],
  "curvature_statistics": {
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    "height_range": 0.12199631493319688,
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  "generation_timestamp": "2025-11-08T02:54:23.661271",
  "correlation_length": 0.030087357158980203,
  "hybrid_parameters": {
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    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.7574282805636254,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.31477605240621204,
    "fractal_modes": 99
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}