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。
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。
That is bad because many Marine creatures rely on shells made of calcium carbonate to protect themselves.
这是相当糟糕的，因为很多海洋生物生活在钙质碳酸盐的贝壳里以保护自己。
Meanwhile, calcium ions in the cement also absorb moisture and carbon dioxide, forming calcium carbonate -- the material found in seashells.
同时，水泥中的钙离子也会吸收水分和二氧化碳，形成碳酸钙——碳酸钙是贝壳的主要成分。
Some will no doubt flourish, but if the trend continues, as it will for at least some decades, clams, mussels, conches and all creatures that grow shells made of calcium carbonate will struggle.
某些生物无疑会繁盛，但是如果这一趋势继续下去，当它至少持续几十年后，蛤、贻贝、海螺和所有生有碳酸钙外壳的生物将生存困难。
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。
Many invertebrates have shells of calcium carbonate that bear evidence of the physical conditions in which they formed.
许多无脊椎动物的碳酸钙贝壳中可以找到其形成时自然条件的证据。
In reefs, the structure is big lumps of calcium carbonate on which things grow and around which they graze and hunt.
对于珊瑚礁而言，结构就是大块的碳酸钙礁石，一切都发生在礁石之上或周围。
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。
It has been known to us that the protein is conducive to the construction of the eggshell Calcium carbonate.
大家已经知道这个蛋白对蛋壳碳酸钙的形成有帮助。
Your body is better at absorbing this form of calcium than the other commonly used form, calcium carbonate, found in antacids like Tums and Rolaids.
比较起其他常用钙的形式，你的身体吸收这种钙的能力强。
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。
They hope to learn how quickly the carbon dioxide and water mixture reacts with the basalt rock to form calcium carbonate.
他们希望了解二氧化碳水溶液与玄武岩产生化学反应形成碳酸钙的速度有多快。
So will corals, especially those whose skeletons are composed of aragonite, a particularly unstable form of calcium carbonate.
珊瑚虫也将如此，特别是那些骨架由霰石(一种极不稳定的碳酸钙形式)组成的种类。
Under UV light, clean sand appears purple or black. Some minerals, such as calcium carbonate in seashells, glow blue, as does a shovel handle in the picture above.
紫外线照射下，干净的沙子呈紫色或黑色。有些矿物，如海贝中的碳酸钙，会闪着蓝光，就如同上图中的铁锹的把手。
Rising carbon dioxide levels acidify the ocean, which has a particularly devastating effect on organisms that have calcium carbonate shells, like Foraminifera.
二氧化碳含量上升致使海洋酸化，对像有孔虫这样有碳酸钙外壳的生物体所产生的影响尤为致命。
One fear is that the increasing acidity will kill off pteropods and similar creatures with calcium-carbonate shells or skeletons.
一个担忧是，越来越高的酸度将毁灭翼足类动物和类似具有碳酸钙外壳或骨架的动物。
The reaction produces a calcium carbonate seal, restoring the slab to its normal load-bearing capacity.
这种反应会产生一种碳酸钙的印迹，并将路面的负荷能力恢复至正常。
Coral reefs are formed by deposits of calcium carbonate left by successive generations of tiny polyps which feed off plankton.
珊瑚礁是由历代以浮游生物为食的小水螅所遗留下来的碳酸钙沉积物而形成的。
Your stomach needs plenty of hydrochloric acid to break down calcium carbonate, so always take your supplement with a meal or snack.
您的胃需要很多盐酸分解碳酸钙，因此请与饭或点心一起服用这些添加物。
Some minerals, such as calcium carbonate in seashells, glow blue, as does a shovel handle in the picture above.
有些矿物，如海贝中的碳酸钙，会闪着蓝光，就如同上图中的铁锹的把手。
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。
Most water contains some carbon dioxide making it a weak acid that can eat away at the calcium carbonate in limestone.
大多数水含有一些二氧化碳，使得水显弱酸性，能够侵蚀石灰岩中的碳酸钙。
Most water contains some carbon dioxide, making it a weak acid that can eat away at the calcium carbonate in limestone.
大多数水含有一些二氧化碳，使得水显弱酸性，能够侵蚀石灰岩中的碳酸钙。
So, there's 1 mole of calcium carbonate.
这儿有1摩尔的碳酸钙产生。
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。
The more recent calcareous, or calcium carbonate, deposits that make up the tufa formations are closer to the bottom and lighter in color.
钙质或碳酸钙越近现代，所构成凝灰岩地层的沉积物越靠近底部，颜色也比较浅。
The more recent calcareous, or calcium carbonate, deposits that make up the tufa formations are closer to the bottom and lighter in color.
钙质或碳酸钙越近现代，所构成凝灰岩地层的沉积物越靠近底部，颜色也比较浅。
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