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{
  "sample_id": 899,
  "geometry_type": "sphere",
  "geometry_parameters": {
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    "radius": 0.6675271822038675,
    "segment_angle": 55.94861073457741
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  "rq_actual": 0.002484916622632603,
  "ra_actual": 0.002034663973576746,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "combined_mechanisms",
  "method": "hybrid",
  "grid_resolution": [
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  ],
  "physical_dimensions": [
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  ],
  "curvature_statistics": {
    "mean_slope": 0.0008714686804469522,
    "max_slope": 0.001600998444564461,
    "height_range": 0.29375451362660715,
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    "std_height": 0.08887443484506612
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  "generation_timestamp": "2025-11-08T04:11:14.854998",
  "correlation_length_x": 0.03563897202153342,
  "correlation_length_y": 0.009483240223377263,
  "orientation": 30.0,
  "anisotropy_ratio": 3.758100731612736,
  "hybrid_parameters": {
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    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.6614592673660884,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.39975888960304845,
    "fractal_modes": 98
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}