| |||
depth interval; interval; section | |||
well section; hole interval |
井段 : 143 phrases in 9 subjects |
Drilling | 54 |
Earth sciences | 5 |
Engineering geology | 4 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Geophysics | 7 |
Mining | 2 |
Oil / petroleum | 43 |
Technology | 26 |