 |
| English thesaurus | |||
| |||
| FF; F/F; F-F | |||
| fuel: 103 phrases in 12 subjects |
| Ecology | 2 |
| Economy | 13 |
| Energy industry | 20 |
| Environment | 24 |
| General | 5 |
| Materials science | 1 |
| Mechanic engineering | 5 |
| Nuclear physics | 3 |
| Obsolete / dated | 1 |
| Research and development | 1 |
| Technology | 2 |
| Transport | 26 |