 |
| |||
| wandering electron | |||
| 漂移 电 子: 15 phrases in 8 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Construction | 1 |
| Ecology | 1 |
| Metallurgy | 3 |
| Space | 2 |
| Technology | 4 |
| Transport | 1 |
|
| |||
| wandering electron | |||
| 漂移 电 子: 15 phrases in 8 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Construction | 1 |
| Ecology | 1 |
| Metallurgy | 3 |
| Space | 2 |
| Technology | 4 |
| Transport | 1 |