 |
| |||
| warning device | |||
| 故障警报器: 6 phrases in 6 subjects |
| Electric machinery | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 1 |
| Wind Energy | 1 |
|
| |||
| warning device | |||
| 故障警报器: 6 phrases in 6 subjects |
| Electric machinery | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 1 |
| Wind Energy | 1 |