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脉冲 δ 调制 : 333 phrases in 21 subjects |
Air defense | 55 |
Artificial intelligence | 1 |
Automobiles | 1 |
Aviation | 18 |
Earth sciences | 8 |
Ecology | 1 |
Electronics | 62 |
General | 5 |
Geophysics | 28 |
Information technology | 10 |
Military | 2 |
Multimedia | 7 |
Oil / petroleum | 7 |
Physics | 1 |
Radio | 4 |
Remote sensing | 3 |
Shipbuilding | 1 |
Space | 24 |
Technology | 84 |
Telecommunications | 9 |
Wind Energy | 2 |