使用NEST 7.17.5库更新旧版本（NEST 1.4.3）的C#代码如下所示，双引号请不要用中文模式下的
    public class SparePartEntity
    {
        private string _name;

        public SparePartEntity()
        {
            RepkitEntities = new List<RepKitEntity>();
            GroupNames = new List<string>();
            AllGroupNames = new List<string>();
            Attributes = new List<AttributeEntity>();
            ImageNames = new List<string>();
            RepkitPartNames = new List<string>();
            AllAssemblyGroupNames = new List<string>();
            FollowUpIds = new List<string>();
            Synonyms = new List<string>();
            ElevatorManufacturerNames = new List<string>();
            ElevatorManufacturerNames = new List<string>();
            PartsManufacturerNames = new List<string>();
            ProductLineNames = new List<string>();
            ComponentTypeNames = new List<string>();
            AssemblyGroupNames = new List<string>();
            Downloads = new List<string>();
            AllAssemblyGroupNamesLocalized = new List<string>();
            AllGroupNamesLocalized = new List<string>();
            
            ProductLineIds = new List<int>();
            AssemblyGroupElevatorIds = new List<int>();
            AssemblyGroupEscalatorIds = new List<int>();
            ComponentTypeIds = new List<int>();
            PartsManufacturerIds = new List<int>();
            GroupIds = new List<int>();
            
            MainAttributeIds = new List<int>();
            SpecificAttributeIds = new List<int>();
        }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string Id { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed, AddSortField = true)]
        public string Name
        {
            get { return _name; }
            set
            {
                _name = value;
                NamePrefix = value != null ? value.ToLower() : null;
            }
        }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string NamePrefix { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string SparePartId { get; set; }
        
        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string Kg { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string OwnerKg { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string Symbol { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, IncludeInAll = true)]
        public string Barcode { get; set; }
        
        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string LanguageKey { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public string Description { get; set; }

        public string Dimensions { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public double Length { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public double Width { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public double Height { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public string Weight { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public DateTime Timestamp { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public DateTime? MarkedDeletedTimestamp { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public DateTime CreateDate { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public DateTime LastSynced { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public long SparePartRevision { get; set; }

        public bool IsDeleted { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> ElevatorManufacturerNames { get; set; }

        #region Product Line

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<int> ProductLineIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> ProductLineNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<string> ProductLineNamesAnalyzed { get; set; }

        #endregion

        #region Assembly Group Elevator

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, IncludeInAll = true)]
        public List<int> AssemblyGroupElevatorIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, IncludeInAll = true)]
        public List<int> AssemblyGroupEscalatorIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, IncludeInAll = true)]
        public List<string> AssemblyGroupNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> AllAssemblyGroupNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<string> AllAssemblyGroupNamesAnalyzed { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> AllAssemblyGroupNamesLocalized { get; set; }

        #endregion

        #region Assembly Group Escalator

        #endregion

        #region Component Type

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<int> ComponentTypeIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> ComponentTypeNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<string> ComponentTypeNamesAnalyzed { get; set; }

        #endregion

        #region Part Manufacturer

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<int> PartsManufacturerIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> PartsManufacturerNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<string> PartsManufacturerNamesAnalyzed { get; set; }

        #endregion

        #region Spare Part Group

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, AddSortField = true)]
        public string GroupName { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, AddSortField = true)]
        public List<int> GroupIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, AddSortField = true)]
        public List<string> GroupNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> AllGroupNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> AllGroupNamesLocalized { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<string> AllGroupNamesAnalyzed { get; set; }

        #endregion

        #region RepKit

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public bool IsRepkit { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, IncludeInAll = true)]
        public List<string> RepkitPartNames { get; set; }

        [ElasticProperty()]
        public List<RepKitEntity> RepkitEntities { get; set; }

        #endregion

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<AttributeEntity> Attributes { get; set; }
        
        public List<string> Synonyms { get; set; }
        
        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed, IncludeInAll = true)]
        public List<string> FollowUpIds { get; set; }
        
        public List<string> ImageNames { get; set; }
        
        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<string> Downloads { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public string Oem { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<string> AllDescriptions { get; set; }

        [ElasticProperty(Index = FieldIndexOption.Analyzed)]
        public List<string> AllNames { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<int> MainAttributeIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public List<int> SpecificAttributeIds { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public bool? PredefinedSolutions { get; set; }

        public byte[] ImageHash { get; set; }

        [ElasticProperty(Index = FieldIndexOption.NotAnalyzed)]
        public BomEntity Bom { get; set; }
    }