| |||
cellar | |||
well cellar | |||
derrick cellar |
方井 : 148 phrases in 11 subjects |
Bridge construction | 1 |
Drilling | 46 |
Earth sciences | 1 |
Engineering geology | 4 |
Explosives and Explosive Ordnance Disposal | 3 |
General | 1 |
Geophysics | 9 |
Mining | 2 |
Nautical | 3 |
Oil / petroleum | 39 |
Technology | 39 |