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| 群频率 | |||
| 群频率; 频率组合 | |||
| 基团频率; 群频 (率) | |||
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group frequency : 31 phrases in 12 subjects |
| Air defense | 4 |
| Artificial intelligence | 1 |
| Biotechnology | 1 |
| Communications | 3 |
| Electronics | 3 |
| Information technology | 3 |
| Oil / petroleum | 1 |
| Space | 2 |
| Sports | 2 |
| Technology | 8 |
| Telecommunications | 2 |
| United States | 1 |
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