| |||
gun; gun perforator; shot tool | |||
perforator | |||
gun perforator (深钻钻工具); well perforator | |||
| |||
perforator |
射孔器 : 97 phrases in 6 subjects |
Air defense | 1 |
Drilling | 3 |
Explosives and Explosive Ordnance Disposal | 6 |
Geophysics | 9 |
Oil / petroleum | 66 |
Technology | 12 |