同步 脉 冲 : 138 phrases in 16 subjects |
Air defense | 20 |
Astronautics | 1 |
Automobiles | 1 |
Aviation | 2 |
Construction | 4 |
Earth sciences | 1 |
Electronics | 14 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 13 |
Geophysics | 1 |
Information technology | 2 |
Metallurgy | 3 |
Multimedia | 2 |
Space | 7 |
Technology | 56 |
Telecommunications | 10 |