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宽度脉 冲 : 141 phrases in 22 subjects |
Air defense | 17 |
Astronautics | 1 |
Automated equipment | 1 |
Automobiles | 4 |
Aviation | 9 |
Construction | 1 |
Earth sciences | 1 |
Ecology | 1 |
Electronics | 17 |
Engineering geology | 2 |
Fishery fishing industry | 1 |
General | 4 |
Geophysics | 12 |
Metallurgy | 1 |
Multimedia | 1 |
Oil / petroleum | 4 |
Radio | 3 |
Shipbuilding | 2 |
Space | 12 |
Technology | 41 |
Telecommunications | 4 |
Wind Energy | 2 |