| |||
| 增幅系统 | |||
| 扩音系统 | |||
| 放大电路系统 | |||
|
amplification system : 12 phrases in 7 subjects |
| Dermatology | 1 |
| Electronics | 1 |
| Genetics | 3 |
| Molecular genetics | 2 |
| Space | 1 |
| Sports | 1 |
| Technology | 3 |
| |||
| 增幅系统 | |||
| 扩音系统 | |||
| 放大电路系统 | |||
|
amplification system : 12 phrases in 7 subjects |
| Dermatology | 1 |
| Electronics | 1 |
| Genetics | 3 |
| Molecular genetics | 2 |
| Space | 1 |
| Sports | 1 |
| Technology | 3 |