Under normal conditions, the activity of the NMDA receptors is tightly regulated to prevent nerve cells from becoming overloaded with calcium.

正常情况下，NMDA受体活性较低从而保证神经细胞不会出现钙超载。

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The result of early study suggested that one of the important functions of calcium was to prevent the substances dissolved in the cytosol from leakaging, which was supported by several experiments.

早期的研究证明钙具有维持生物膜的选择适性、防止可扩散细胞内含物外渗的作用，不少的实验也证明了这一论点。

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Salt is almost always treated with additives (magnesium carbonate, magnesium oxide, calcium silicate) to prevent it from absorbing moisture and ensure that it remains free flowing and granular.

盐几乎总与添加剂(碳酸镁、氧化镁、矽酸钙)处理来防止它吸入空气中的湿气和保护它仍然随意的流动和颗粒状。

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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