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| English thesaurus | |||
| |||
| SOS | |||
|
Safe Operating : 22 phrases in 14 subjects |
| Caspian | 1 |
| Construction | 3 |
| Economics | 1 |
| Electrical engineering | 2 |
| Electronics | 1 |
| General | 2 |
| Military | 1 |
| Occupational health & safety | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Road works | 1 |
| Scientific | 1 |
| Technology | 3 |
| Transport | 3 |