![]() |
| |||
双脉冲 | |||
| |||
双重脉冲的 |
double- pulse : 21 phrases in 12 subjects |
Air defense | 3 |
Aviation | 1 |
Chemistry | 1 |
Earth sciences | 1 |
Electronics | 4 |
Information technology | 1 |
Metallurgy | 1 |
Nuclear and fusion power | 1 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 5 |
Telecommunications | 1 |