名词
中文翻译：熔炉黑
同义词：
["blacksmith's fire", 'ironoxide']
例句：
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1. Thefurnace black is a byproduct of theiron smelting process.
炼铁黑是铁冶炼过程的副产品。
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2.The blacksmith used this furnace black tocoat his tools for better wear resistance.
这位铁匠用这种炼铁黑来涂覆他的工具，以增加其耐磨性。
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3. The blacksmith's fire wasso intense that it turned the furnace blackwithin minutes.
铁匠的火焰如此炽热，几分钟内就使炉子变成了黑色。