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| 灰吹法; 烤缽炼金法于灰皿中精炼金银之法; 吹灰法; 灰皿试金法; 烤钵冶炼; 烤钵试金法 | |||
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купелирования : 3 phrases in 3 subjects |
| General | 1 |
| Metallurgy | 1 |
| Nonferrous industry | 1 |
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