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    "row_height": 8.0,
    "column_definitions": [
      {
        "name": "件号",
        "relative_x_start": 0.0,
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            "style": "HZTXT",
            "layer": "6文字层",
            "color": 256
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      {
        "name": "名称",
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        "text_definitions": [
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            "data_key": "english_name",
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            "height": 2.0,
            "style": "HZTXT",
            "layer": "2",
            "color": 256
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            "height": 3.0,
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            "layer": "6文字层",
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      {
        "name": "材料",
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      },
      {
        "name": "质量",
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        "text_definitions": [
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            "data_key": "main",
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      },
      {
        "name": "比例",
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      },
      {
        "name": "所在图号",
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            "data_key": "main",
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        "name": "装配图号",
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}