human tooth enamel 人牙釉质
human tooth germ cDNA library 人牙胚cDNA文库
human tooth germ 人牙胚
fossil human tooth 人牙化石
human tooth fossil 人牙化石
human tooth development 人牙齿发育
human tooth germ development 人牙齿发育
human fossil tooth 人牙化石
In addition to value, hue and chroma, there are many subtle secondary optical properties of natural human tooth, such as translucency, opacity, iridescence, surface gloss and fluorescence. Translucency has been viewed as the most importance of these secondary properties.
天然牙的视觉外观除了颜色的三要素色相、明度、饱和度以外，还有许多第二光学特征：半透性、浑浊度、晕色、表面光泽度、荧光性，其中以半透性最为重要。
参考来源 - 天然牙和牙科陶瓷半透性的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
PURPOSE: To establish human tooth slice organ culture model in vitro.
目的：建立人牙切片体外器官培养模型。
Some of them are funny design while some of them are ridiculous, especially Human Tooth Ring.
其中有些是有趣的设计，而另一些就有些荒唐，尤其是人齿戒指。
The tooth, a molar, is bigger than any modern human tooth and is even bigger than the biggest Neanderthal tooth.
这是一颗臼齿，比任何现代人的牙齿都要大，甚至比最大的尼安德特人的牙齿还大。
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