![]() |
| |||
boring pattern | |||
drilling diagram; drilling plan | |||
drill map | |||
boring pattern (式); drilling pattern (式) |
钻孔图: 58 phrases in 9 subjects |
Bridge construction | 4 |
Coal | 1 |
Electronics | 3 |
Engineering geology | 13 |
Explosives and Explosive Ordnance Disposal | 4 |
Hydroelectric power stations | 4 |
Metallurgy | 1 |
Rail transport | 1 |
Technology | 27 |