That strengthens teeth and encourages the growth of enamel crystals that build up a tooth's defenses against acid.

也添加了微量氟化物可以强化牙齿、促进珐琅质生长。

Fire had polished the sparkling enamel of its inner walls, sprinkled all over with mica-rich dust.

火力把珐琅质和发光泽为洞壁摩亮了，洞壁满是云母石粉屑。

Lemons are so acidic they can actually take the protective enamel off your teeth.

实檬酸到可以把你牙齿具有保护性质珐琅质去除掉。

First, the acid eats away the very hard outer layer of yourtooth, called the enamel. Inside the enamel is the dentin.

酸性物质会先腐蚀掉牙冠表层珐琅质。珐琅质所包覆便是牙本质。

They're false in that they're not made of what our teeth are made of: dentin and enamel.

“伪牙”不是由我牙齿材料——牙本质和珐琅质——构成。

Generally, as carnivores consume protein-rich meat, certain nitrogen isotopes accumulate in their tissues— including the enamel of their teeth.

一般来说， 当食肉动物食用富含蛋白质肉时，某些氮同位素会积聚在它织中——包括牙齿珐琅质。

The acid content in the Coke would destroy the enamel on your teeth and the sugar would soon lead to cavities.

可乐中酸成分会破坏牙齿珐琅质，而糖分会很快导致蛀牙。

Besides that, this acid also isn't great for your teeth; since it's acidic, it's proven to erode the enamel of your pearly whites.

此外，这种酸对你牙齿也不太好，因为它属于酸性，已经被证明会侵蚀洁白牙齿珐琅质。

Teeth, for example, tend to survive decomposition very well, since their outer enamel coating is very hard and contains very little protein, if any.

以牙齿为例，由于牙齿外层珐琅质非常坚硬，蛋白质含量也非常低，因此牙齿易于分解。

I mean, it's still an acid, and in a study, researchers did find that sparkling mineral water dissolved slightly more tooth enamel than regular water.

我意思是，它仍然是酸，而在一项研究中，研究人员确实有发现气泡矿泉水溶解牙齿珐琅质比一般水稍微多一些。

According to some places on the internet, that acid disintegrates the enamel of your teeth or even causes kidney stones, neither of which sound any good.

网络有些文章指出，那种酸会分解你牙齿珐琅质，甚至引起肾结石，两者听起来都不是好事。

Some people are more susceptible to cavities due to genes that may cause certain weaknesses, like softer enamel, but for most, high sugar consumption is to blame.

你可能会难以置信 目前有 92％ 国成年人有蛀牙有些人容易蛀牙，是因为基因所导致珐琅质脆弱。

All these crumbling masses were covered with an enamel polished by the action of underground fires, and they glistened under the stream of electric light from our beacon.

所有这些大堆石头分解了，受地下火力量面浮起一层光滑珐琅质，一经探照灯照射，发出辉煌光彩。

As the drink enters your mouth, it's high acid content begins to erode the enamel on your teeth. And the microorganisms in your plaque start to feed off the sugar which can lead to cavities.

当饮料进到你嘴里，高度酸性物质开始腐蚀你牙齿珐琅质，齿菌斑中微生物会开始以这些醣类维生，导致蛀牙。

If you're picturing skin covered in human teeth - just stop, that's terrifying These " skin-teeth" were really more like bumps made of dentine, which is the hard tissue found underneath the enamel of your teeth.

如果你想象是人类牙齿覆盖皮肤——停下来，那太可怕了。 这些“皮肤牙齿” 实更像是由牙本质构成肿块，牙本质是牙齿珐琅质下面硬织。