 |
| |||
| 井管 | |||
| 升水管 | |||
| 井点管; 豎管 | |||
| 竖管 | |||
| 室内立管; 上升管; 立管; 上流竖管; 连接用立管 | |||
| riser pipe: 14 phrases in 6 subjects |
| Drilling | 1 |
| Hydroelectric power stations | 1 |
| Navigation | 1 |
| Oil / petroleum | 5 |
| Refrigeration | 1 |
| Technology | 5 |
|
| |||
| 井管 | |||
| 升水管 | |||
| 井点管; 豎管 | |||
| 竖管 | |||
| 室内立管; 上升管; 立管; 上流竖管; 连接用立管 | |||
| riser pipe: 14 phrases in 6 subjects |
| Drilling | 1 |
| Hydroelectric power stations | 1 |
| Navigation | 1 |
| Oil / petroleum | 5 |
| Refrigeration | 1 |
| Technology | 5 |