logical field
| descriptor
| logical field abbr. | |
| multimed. | 逻辑域 |
| descriptor abbr. | |
| 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 |
| |||
| 逻辑域 | |||
|
logical field : 2 phrases in 2 subjects |
| Electronics | 1 |
| Information technology | 1 |