选通脉 冲 : 99 phrases in 15 subjects |
Air defense | 14 |
Astronautics | 2 |
Automated equipment | 1 |
Aviation | 2 |
Construction | 1 |
Electronics | 11 |
General | 5 |
Geophysics | 1 |
Metallurgy | 13 |
Multimedia | 1 |
Oil / petroleum | 2 |
Project management | 1 |
Space | 12 |
Technology | 25 |
Telecommunications | 8 |