 |
| |||
| 最小可检测流量密度 | |||
| minimum detectable: 60 phrases in 14 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Chemistry | 6 |
| Earth sciences | 8 |
| Electronics | 7 |
| General | 1 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Space | 10 |
| Technology | 19 |
| Telecommunications | 1 |
| Water resources | 1 |
| Wind Energy | 1 |
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