表 4. Fault classification.
故障分类表
| 序号 | 字段名称 | 数据类型 | 注释 |
| 1 | ID | 固定长度字符串 | — |
| 2 | 父ID | 固定长度字符串 | — |
| 3 | 分类名称 | 可变长度字符串 | 主键 |
| 4 | 所属设备类型 | 可变长度字符串 | — |
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