 |
| |||
| 爆破孔; 炮眼; 口即筒下; 进水口; 鼓风口 | |||
| 炮孔 | |||
|
blasthole ratio : 49 phrases in 6 subjects |
| Earth sciences | 1 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 44 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Technology | 1 |
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