file set
| descriptor
| file set | |
| IT | 文件集 |
| descriptor | |
| avia. | 描述符号 |
| hydroel.st. | 主题词 |
| oil | 解说符; 描述符; 描述信息 |
| telecom. | 叙词 |
| work.fl. | 描述符; 叙词 |
| |||
| 文件集 | |||
| 文件组 | |||
|
file set : 14 phrases in 5 subjects |
| Business | 1 |
| Economics | 2 |
| Electronics | 2 |
| Project management | 3 |
| Technology | 6 |