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step by step : 54 phrases in 20 subjects |
| Antennas and waveguides | 1 |
| Automated equipment | 1 |
| Automatic control | 3 |
| Baseball | 1 |
| Communications | 9 |
| Computer numerical control | 2 |
| Earth sciences | 2 |
| Economics | 1 |
| Electronics | 20 |
| Environment | 1 |
| Industry | 1 |
| Information technology | 2 |
| Law | 1 |
| Life sciences | 1 |
| Measuring instruments | 1 |
| Mechanic engineering | 3 |
| Metallurgy | 1 |
| Microsoft | 1 |
| Technology | 1 |
| Transformers | 1 |