包衬，指的是印刷机压印体上或印版下的包复物。
镁钙碳砖是一种经济又实用的包衬材料。
Magnesium-carbon-calcium fireproof brick is a kind of economical and practical ladle liner material.
DLF精炼站可提高热效率，降低包衬材料消耗。
The DLF refining station can increase heat efficiency and reduce the consumption of the ladle liner materials.
用焦油白云石做包衬，在德国及欧洲其它国家很普及。
The ladle lining with tar dolomite is common in German and in Europe.
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