{
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        "http://www.supermapol.com/realspace/services/data-road/rest/data/datasources/CBD车道/datasets/车道三维/fields/item_length/STDDEVIATION",
        "http://www.supermapol.com/realspace/services/data-road/rest/data/datasources/CBD车道/datasets/车道三维/fields/item_length/SUM",
        "http://www.supermapol.com/realspace/services/data-road/rest/data/datasources/CBD车道/datasets/车道三维/fields/item_length/VARIANCE"
    ],
    "fieldInfo": {
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        "defaultValue": "",
        "name": "item_length",
        "caption": "item_length",
        "type": "DOUBLE",
        "maxLength": 8,
        "isZeroLengthAllowed": true,
        "isSystemField": false
    }
}