| |||
| 选通门检测器 | |||
|
gate detector : 6 phrases in 5 subjects |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Public security | 1 |
| Technology | 2 |
| |||
| 选通门检测器 | |||
|
gate detector : 6 phrases in 5 subjects |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Public security | 1 |
| Technology | 2 |