 |
| |||
| стандартизация условных обозначений | |||
| symbol identification: 18 phrases in 9 subjects |
| Energy industry | 2 |
| Information security and data protection | 2 |
| Information technology | 1 |
| Librarianship | 1 |
| Makarov | 2 |
| Medical | 4 |
| Military | 3 |
| Oil and gas technology | 1 |
| Technology | 2 |