 |
| |||
| 指数基础 | |||
|
reference base : 12 phrases in 8 subjects |
| Air defense | 1 |
| Business | 2 |
| Commerce | 1 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Statistics | 3 |
| Technology | 2 |
|
| |||
| 指数基础 | |||
|
reference base : 12 phrases in 8 subjects |
| Air defense | 1 |
| Business | 2 |
| Commerce | 1 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Statistics | 3 |
| Technology | 2 |