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charcoal pig; charcoal pig-iron | |||
charcoal iron; charcoal pig iron | |||
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charcoal pig; charcoal pig iron (Charcoal pig iron refers to the product of the smelting of ore with charcoal, rather than with coke. 木炭生铁是一种用木炭而非用焦炭熔炼铁矿石得到的产品。) |
木炭 生铁 : 6 phrases in 2 subjects |
Metallurgy | 5 |
Technology | 1 |