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control switch : 64 phrases in 17 subjects |
| Automated equipment | 3 |
| Communications | 8 |
| Computer numerical control | 1 |
| Computers | 1 |
| Earth sciences | 1 |
| Electrical engineering | 2 |
| Electricity generation | 1 |
| Electronics | 12 |
| General | 3 |
| Industry | 2 |
| Information technology | 4 |
| Materials science | 1 |
| Measuring instruments | 3 |
| Mechanic engineering | 5 |
| Metallurgy | 1 |
| Technology | 2 |
| Transport | 14 |