[
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        "handle":  "ABC",
        "text":  "Φ70H7/js6",
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        "fit_code":  "H7/js6",
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                                                                "handle":  "25A",
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                                                                "handle":  "21D",
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    {
        "handle":  "ACD",
        "text":  "Φ50H7/js6",
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        "fit_code":  "H7/js6",
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                                                                "object_name":  "AcDbHatch",
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                                                                "distance_mm":  1.6013
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                                                        ]
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    },
    {
        "handle":  "ADE",
        "text":  "Φ60H7/f6",
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        "fit_code":  "H7/f6",
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                                                                "distance_mm":  0
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                                                                "distance_mm":  0
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                                                                "distance_mm":  0
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                                                            {
                                                                "handle":  "261",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "427",
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                                                                "distance_mm":  0
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                                                            {
                                                                "handle":  "1D9",
                                                                "object_name":  "AcDbArc",
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                                                                "distance_mm":  1.8686
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    {
        "handle":  "AF9",
        "text":  "Φ70H6/f5",
        "nominal_size_mm":  70,
        "fit_code":  "H6/f5",
        "point_bindings":  [
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                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "37E",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
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                               {
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                                                                "handle":  "334",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "42C",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
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                                                        ]
                               }
                           ]
    },
    {
        "handle":  "B0C",
        "text":  "Φ50H6/f5",
        "nominal_size_mm":  50,
        "fit_code":  "H6/f5",
        "point_bindings":  [
                               {
                                   "reference_point_kind":  "xline1_point",
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                                   "y_mm":  286.6198464414167,
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                                                            {
                                                                "handle":  "33B",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "AFA",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "346",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  1.9424
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                                   "reference_point_kind":  "xline2_point",
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                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "42C",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "AFA",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "42A",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0.946
                                                            },
                                                            {
                                                                "handle":  "323",
                                                                "object_name":  "AcDbLine",
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                                                                "distance_mm":  1.8955
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                                                        ]
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    },
    {
        "handle":  "B16",
        "text":  "Φ50n6",
        "nominal_size_mm":  50,
        "fit_code":  "n6",
        "point_bindings":  [
                               {
                                   "reference_point_kind":  "xline1_point",
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                                                                "handle":  "36A",
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                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
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                                                            {
                                                                "handle":  "396",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "398",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "42B",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "42E",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "5E4",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
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                                   "reference_point_kind":  "xline2_point",
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                                                            {
                                                                "handle":  "35C",
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                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "397",
                                                                "object_name":  "AcDbLine",
                                                                "layer":  "粗实线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "42B",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "42E",
                                                                "object_name":  "AcDbHatch",
                                                                "layer":  "剖面线层",
                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "5E3",
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    {
        "handle":  "B20",
        "text":  "Φ65H7",
        "nominal_size_mm":  65,
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                                                            {
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                                                            {
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                                                            },
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                                                            {
                                                                "handle":  "D01",
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                                   "reference_point_kind":  "xline2_point",
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                                                            {
                                                                "handle":  "379",
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                                                            {
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                                                                "object_name":  "AcDbLine",
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                                                                "distance_mm":  0
                                                            },
                                                            {
                                                                "handle":  "615",
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                                                                "layer":  "粗实线层",
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                                                            {
                                                                "handle":  "617",
                                                                "object_name":  "AcDbLine",
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                                                            {
                                                                "handle":  "D02",
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]