扒渣，意思是挖掘煤矿,铁矿,磷矿,锌矿等矿业。
n. drossing
misc. slagging-off
用于各种铝合金，除气后迅速扒渣，即可浇铸。
It can be used for various aluminum alloys. Casting may be made immediately after degassing and slagging off.
概述了首钢第三炼钢厂原用扒渣机存在的问题；
This article mentions about the existing problems of the old slagging off machine in No. 3 steel-making factory of Shougang;
采用单喷颗粒镁铁水脱硫与扒渣工艺，改善了转炉冶炼原料铁水条件。
Through using spraying magnesium grain into iron to desulfurize and pushing out the top slag, the sulfur content in the iron was decreased.
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