| |||
| 钻杆串包括钻杆及工具接头等下井附件 | |||
| 钻柱 | |||
| 钻管; 钻杆; 钻杆柱; 钻具组 | |||
| 钻杆组 | |||
|
drill string : 65 Phrasen in 6 Thematiken |
| Bohren | 16 |
| Erdöl | 28 |
| Geowissenschaften | 1 |
| Ingenieurgeologie | 2 |
| Marine | 1 |
| Technik | 17 |
| |||
| 钻杆串包括钻杆及工具接头等下井附件 | |||
| 钻柱 | |||
| 钻管; 钻杆; 钻杆柱; 钻具组 | |||
| 钻杆组 | |||
|
drill string : 65 Phrasen in 6 Thematiken |
| Bohren | 16 |
| Erdöl | 28 |
| Geowissenschaften | 1 |
| Ingenieurgeologie | 2 |
| Marine | 1 |
| Technik | 17 |