| |||
| 等价序列 | |||
|
equivalent sequence : 3 phrases in 3 subjects |
| Business | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |
| |||
| 等价序列 | |||
|
equivalent sequence : 3 phrases in 3 subjects |
| Business | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |