| |||
| 脉冲发生 | |||
|
pulse generating : 12 phrases in 7 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Cartography | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Metallurgy | 3 |
| Technology | 4 |
| |||
| 脉冲发生 | |||
|
pulse generating : 12 phrases in 7 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Cartography | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Metallurgy | 3 |
| Technology | 4 |