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| English thesaurus | |||
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| OCS | |||
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Open Control System : 35 phrases in 11 subjects |
| Air defense | 1 |
| Astronautics | 1 |
| Automated equipment | 9 |
| Automatic control | 9 |
| Construction | 1 |
| Electronics | 2 |
| Mechanics | 1 |
| Oil and gas technology | 1 |
| Programming | 6 |
| Technology | 3 |
| Telecommunications | 1 |