 |
| |||
| 钻头离开井底 | |||
| 全部熔化 | |||
| 离开炉底全部熔化 | |||
| 近离孔底; 全部溶化 | |||
| |||
| 钻头离开井底; 未接触井底; 井底之上 | |||
|
off-bottom : 30 phrases in 10 subjects |
| Drilling | 8 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Fishery fishing industry | 1 |
| Labor organization | 1 |
| Nautical | 1 |
| Oil / petroleum | 11 |
| Project management | 1 |
| Public security | 1 |
| Technology | 4 |