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guide wall |
护井 : 63 phrases in 12 subjects |
Drilling | 5 |
Earth sciences | 1 |
Engineering geology | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 2 |
Geophysics | 1 |
Mining | 1 |
Navigation | 1 |
Oil / petroleum | 15 |
Space | 3 |
Technology | 28 |
Water resources | 3 |