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drill rod, drill steel | |||
drill rod | |||
bull prick; drilling steel; feather bar; gad; jumper; plugging chisel; steel chisel |
钢钎: 48 phrases in 6 subjects |
Construction | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Hydroelectric power stations | 2 |
Metallurgy | 16 |
Technology | 27 |