 |
| |||
| 空心; 裸井; 安装孔 | |||
| 空心的 | |||
| |||
| 裸眼井 | |||
| 裸眼 | |||
| 裸井; 无井管孔; 安装孔 | |||
| |||
| 安装孔 | |||
| open-hole: 79 phrases in 12 subjects |
| Automobiles | 1 |
| Chemistry | 1 |
| Drilling | 17 |
| Earth sciences | 4 |
| Engineering geology | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 5 |
| Mining | 2 |
| Oil / petroleum | 32 |
| Plastics | 1 |
| Space | 1 |
| Technology | 11 |