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Alkalies also cause severe wear of common refractories.
碱还严重地浸蚀通用的耐火材料。
youdao
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The first large production of sealing materials and refractories County.
我县为密封材料生产第一大县。
youdao
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The first large production of sealing materials and refractories County.
我县为密封材料生产第一大县。
youdao