The calcium carbonate settles to the sea floor.

碳酸钙沉入海底。

Among them, calcium carbonate washed away by continuously running water.

其中的碳酸钙会被流水带走。

Over time, these polyps generate rock-like skeletons made of calcium carbonate.

逐渐地，这些珊瑚虫长出形似，碳酸钙组成的骨架。

Coral is made up of small colonial animals, with calcium carbonate skeletons.

珊瑚是小型珊瑚虫及其碳酸钙骨骼聚集而成的。

Health departments often assess hardness by measuring the milligrams of calcium carbonate per liter.

卫生部门通常通过测量每升碳酸钙的毫克来评估硬度。

The team added barium sulfate, often used to make photo paper, and calcium carbonate, something you'd find in rocks or shells, to make an even whiter, even more reflective, even cooler surface.

研究小组添加了硫酸钡（通常用于制作相纸）和碳酸钙（你可以在岩或贝壳中找到的东西），以制造更白、更反光、更凉爽的表面。

They have also discovered that the shells of many organisms in the area are short of aragonite, a form of calcium carbonate that gives them strength, but whose formation acid discourages.

他们也发现，这里许多生物的外壳缺少文—一种让这些生物产生力量的碳酸钙形式—但是，它们体内的酸性形式阻碍了这种物质的合成。

In front of the monastery, there lies a karst cave of immeasurable depth, while behind it, there is a stone tablet. All but the top of the tablet has been buried in calcium carbonate, so that the inscriptions are unreadable now.

寺前有一溶洞，深邃莫测。寺后有一，除檐外，几乎全被碳酸钙沉淀，文已不可辨认。

But if you're prepared to look closer — to see through its calcium carbonate shell — you'll find a microcosm of the universe.

但如果你准备近距离观察——透过它的碳酸钙外壳——你会发现宇宙的一个缩影。

Oh, stuff like magnesium salts, and alcohol for keeping the Deltas and Epsilons small and backward; and calcium carbonate for bones, and all that sort of thing.

哦，比如镁盐，比如保持德尔塔和爱扑塞隆们瘦小落后的酒精；比如制造骨的碳酸钙和诸如此类的东西。

Likewise, osteoblasts are the blast cells of bone tissue, and the matrix they lay down is the nexus of calcium carbonate that forms your bone.

同样地，成骨细胞是骨组织的成骨细胞，它们形成的基质是形成骨骼的碳酸钙的结合体。

But at greater depths, the water isn't quite as saturated with calcium and carbonate, and thus calcium carbonate is easier to dissolve.

但在更深的地方，水里的钙和碳酸盐的饱和度不高，因此碳酸钙更容易溶解。

If you dissolve away an egg shell, which is rich in calcium carbonate, with an acid, like vinegar, it maintains its shape.

如果你用醋之类的酸溶解富含碳酸钙的蛋壳，它会保持其形状。

Hard corals create the reef by secreting calcium carbonate—or limestone, a type of rock, which gradually builds up into a solid structure.

硬珊瑚通过分泌碳酸钙来造礁，或称之为灰岩，一种岩类型，逐渐形成固体的结构。

Normal concrete is bound with Portland cement, which is made by roasting a mixture that includes limestone (calcium carbonate).

普通的混凝土与硅酸盐水泥结合在一起，硅酸盐水泥是通过焙烧含有灰的（碳酸钙）混合物制成。

Enough of such cyanobacterial work over enough time and eventually you get the Bahamas, built out of calcium carbonate.

需要足够多的这种蓝细菌在长时间里共同参与，最终才会有这个用碳酸钙建造起来的巴哈马群岛。

Every summer, as the surface waters warm, flakes of calcium carbonate precipitate out and drift to the bottom.

每年夏天，随着表层海水变暖，碳酸钙薄片沉淀出来，沉向海底。

Also during that period, creatures with hard body parts such as shells made of calcium carbonate appeared.

同样是在那个时期，出现了具有坚硬的身体部位的生物，比如碳酸钙生成的贝壳。

And it's laid down to gather together calcium for calcium-carbonate eggshells that they are making during ovulation.

它储存和积累钙元素，用于形成排卵期间碳酸钙构成的蛋壳。

And the deep sea is under saturated in calcium carbonate, so it literally dissolved all the bones.

深海的碳酸钙饱和不足，所以它溶解了所有的骨。