| |||
| 均压线电密 | |||
|
current density : 5 phrases in 5 subjects |
| Aviation | 1 |
| Electric machinery | 1 |
| Foreign trade | 1 |
| Superconductivity | 1 |
| Technology | 1 |
| |||
| 均压线电密 | |||
|
current density : 5 phrases in 5 subjects |
| Aviation | 1 |
| Electric machinery | 1 |
| Foreign trade | 1 |
| Superconductivity | 1 |
| Technology | 1 |