High temperature performance of acid lining of the induction crucible furnace mainly depends on the physical and chemical properties and mineral composition of used refractory.

坩埚式感应炉酸性炉衬的高温性能，主要取决于所用耐火材料的物理、化学性能及矿物组成。

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Resiliconizing problem is usually confronted in the melting process of self - fluxing nickel base alloys in furnace with acid lining, which severely affects the product's quality.

在酸性炉衬中熔炼镍基自熔合金时常出现增硅问题，严重影响产品质量。

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The cells at the top of the pits produce mucus, which protects the stomach lining against gastric acid.

胃小凹顶部的细胞则产生胃黏液，通过胃膜的保护使胃不受胃酸的伤害。

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"What calcium appears to do is help to bind both fatty acid and bile acid within the colon to prevent them from interacting with the colon lining and therefore reducing the irritant effect of these substances upon the colon, " said lead researcher Dr. Peter Holt of St.

CNN: Study says calcium may cut colon cancer risk