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1·In many marine creatures, however, the skeleton is composed of a mineral variety of calcium carbonate called aragonite.

然而，很多海洋生物的骨骼由一种叫作霰石的碳酸钙矿物变体组成。

2·The fossils buried in Pleistocene and earlier ocean sediments were of foraminifera—small, single-celled marine organisms that secrete shells of calcium carbonate, or calcite.

在更新世和更早的海洋沉积物中埋藏的化石生物属于孔虫类生物，它们是微小的单细胞海洋生物，其分泌的硬壳由碳酸钙和方解石组成。

3·So, there's 1 mole of calcium carbonate.

这儿有1摩尔的碳酸钙产生。

4·Inside, lime bonds with the carbon dioxide to form solid calcium carbonate.

在内部石灰与二氧化碳结合生成碳酸钙固体。

5·Many species of invertebrate have shells or skeletons made of calcium carbonate.

无脊椎类的好多物种有碳酸钙质的外壳或骨骼。

6·These calcium carbonate towers, called tufas, formed underwater in California's Mono Lake.

这些叫做石灰华的碳酸钙塔是在加州莫诺湖的水下形成的。

7·Two different white powders are thought to be calcium carbonate and calcium hydroxide.

现有两种白色粉末，已知一种是碳酸钙，另一种是氢氧化钙。

8·Calcium carbonate and the premenstrual syndrome: Effects on premenstrual and menstrual symptoms.

碳酸钙与经前紧张综合征：对经前和经期症状的作用。

9·The corals familiar to most of us are colonies of small polyps that build calcium carbonate branches.

我们所熟知的珊瑚都是由群集的微小水螅分泌的分枝状碳酸钙外骨骼。

10·The white cliffs of Dover, for example, are white because they contain limestone, or calcium carbonate.

比如，多佛的白色峭壁之所以为白色就是因为含有石灰岩或碳酸钙。