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Energy Level : 38 phrases in 15 subjects |
| Antennas and waveguides | 4 |
| Astronomy | 1 |
| Automated equipment | 9 |
| Economics | 1 |
| Electronics | 5 |
| Energy industry | 1 |
| Environment | 2 |
| Food service and catering | 1 |
| Medical appliances | 2 |
| Name of organization | 2 |
| Physical sciences | 2 |
| Taxes | 1 |
| Technology | 3 |
| Transport | 1 |
| United Nations | 3 |