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| borasca; borrasca; borasco; borasque; bouse; bowse; breaking; chats; halvans; halvanore | |||
| lean halving; low grade ore | |||
| mining sterile | |||
| dradge; lean ore; low-grade ore; low-metal content ore; poor ore | |||
| barren ore; halvans (石); halvings; lean material; low-grade ore (石); poor ore (石); poor quality of the ores | |||
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| chat | |||
| 贫矿: 40 phrases in 7 subjects |
| Chemistry | 1 |
| Ecology | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 8 |
| Metallurgy | 16 |
| Mining | 1 |
| Technology | 11 |