| |||
| 光学变星 | |||
|
optical variable : 14 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 5 |
| General | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Technology | 5 |
| |||
| 光学变星 | |||
|
optical variable : 14 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 5 |
| General | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Technology | 5 |