 |
| |||
| sectional view | |||
| 截面观: 22 phrases in 8 subjects |
| Air defense | 1 |
| Business | 1 |
| Chemistry | 1 |
| Electronics | 5 |
| General | 1 |
| Nuclear and fusion power | 2 |
| Oil / petroleum | 6 |
| Technology | 5 |
|
| |||
| sectional view | |||
| 截面观: 22 phrases in 8 subjects |
| Air defense | 1 |
| Business | 1 |
| Chemistry | 1 |
| Electronics | 5 |
| General | 1 |
| Nuclear and fusion power | 2 |
| Oil / petroleum | 6 |
| Technology | 5 |