| |||
| 谱线证认 | |||
| 管道标记; 管线标记 | |||
| 线路标识 | |||
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Line Identification : 55 phrases in 13 subjects |
| Advertising | 1 |
| Artificial intelligence | 1 |
| Aviation | 2 |
| Communications | 5 |
| Electronics | 15 |
| Foreign trade | 1 |
| General | 2 |
| Information technology | 11 |
| Rail transport | 3 |
| Space | 2 |
| Technology | 5 |
| Telecommunications | 6 |
| Textile industry | 1 |