| |||
| 隔离噪声 | |||
|
noise isolation : 9 phrases in 5 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Electric machinery | 1 |
| Geophysics | 1 |
| Technology | 5 |
| |||
| 隔离噪声 | |||
|
noise isolation : 9 phrases in 5 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Electric machinery | 1 |
| Geophysics | 1 |
| Technology | 5 |