The biological anthropologist Christy Turner is an expert in the analysis of changing physical characteristics in human teeth.
生物人类学家克里斯蒂·特纳是分析人类牙齿的物理特性变化的专家。
Human teeth are almost as hard as rocks.
人的牙齿几乎和石头一样硬。
Yes, what was wrong with your old human teeth?
你到底把自己的牙怎么了？
The wear of human teeth is an inevitable physiological process.
人体天然牙的磨损是无法避免的。
All works are handmade in Melbourne, with sterling silver, human hair and human teeth.
所有的作品都以纯银、人的头发和牙齿在墨尔本手工制作而成。
Ardi's upper canine teeth are more similar to stubby human teeth than sharp chimpanzee teeth.
—与黑猩猩锋利的牙齿相比，“阿蒂”的犬齿更像人类的短平的牙齿。
How to recur the color of natural human teeth is an issue concerned by both dentists and patients.
如何使修复体重现自然牙的色彩，成为医患双方共同关注的问题。
RESULTS Proliferating cell nuclear antigen had different distribution in each stage during human teeth development.
结果增殖细胞核抗原在人牙齿发育各阶段具有不同的表达模式。
Methods: Areas of subgingival calculus were selected from 6 freshly extracted human teeth with periodontal disease.
方法：选取6颗新近拔除的有明显龈下牙石的牙周病患牙。
Yuanmou man in 1965, archeologists found two ancient human teeth and some rough stone tools in Yuanmou County, Yunnan Province.
元谋人1965年，在云南省元谋县，考古人员发现了两颗远古人类的牙齿和一些粗糙的石器。
Human teeth are omnivorous in design, yet more closely resemble primate teeth whose possessors live largely on fruit and plants.
人类牙齿的设计属杂食，但更类似于主要以水果和植物为食的灵长类牙齿。
Human teeth are harder than gold but softer than pyrite, according to the Mohs Hardness Scale, which categorizes how easily minerals scratch.
根据莫氏硬度表，人类牙齿的硬度比黄金大但比黄铁矿小。
It is the purpose of this study to examine the prevalence and distribution of cementicles on different root surfaces of 524 extracted human teeth.
从人体上拔除的524枚牙的牙根表面上检查了牙骨质疣的发生率及其分布。
AIM: to investigate the morphology of permanent human teeth of the Han Nationality and provide anatomic data for clinical treatment of tooth and pulp diseases.
目的：了解我国汉族人群恒牙牙体形态特征，为牙体、牙髓病的临床治疗提供解剖学资料。
Prehistoric humans, along with Neanderthals and Homo antecessor, made meals of each other, suggests new research on probable human teeth marks found on prehistoric human bones.
根据对史前人类骨骼上可能是人类牙齿痕迹的新研究表明，史前人类，和穴居人和能人一样，都会相互残杀作为食物。
Objective This in vitro study quantitatively assessed the effect of frequency and time span of immersion of human teeth in acidic soft drinks on enamel surface microhardness.
目的本实验用显微硬度测量法，定量研究和评估人离体牙釉质在酸性饮料中的硬度变化，比较牙釉质在饮料中浸泡时间及浸泡频率对釉质表面硬度的影响。
The ratios of these element forms change with climate and local geology. Like tree rings, human teeth record this signature year by year and can be used to narrow down a person's native region.
这些元素因为气候和当地地理而改变的比率像树年轮一样，人类的牙齿同样年复一年的记录着这些特征，这常常可以用来限定一个人的出生地。
Human beings needed to use tools because they did not have sharp teeth like other meat-eating animals, such as lions and tigers.
人类需要使用工具，因为他们没有像其他食肉动物如狮子和老虎那样锋利的牙齿。
This is the kind of kite that has a wooden mask at the top of the frame—it's a mask of a human head—and you can clearly see it bas a tattoo and also a set of teeth.
这种风筝在框架的顶部有一个木制的面具——它是一个人头面具——你可以清楚地看到它有一个纹身和一副牙齿。
Teeth from ancient human ancestors suggest that females joined new social groups once they reached maturity.
从远古人类祖先牙齿显示，女性们一到成年就加入新的社会群体。
In 1958 scientists in st Louis began a campaign to collect baby teeth to study the link between above-ground testing and human exposure.
1958年，圣易路斯的科学家们就开始收集婴儿的牙齿以研究地面试验与人类接触之间的联系。
Hanako is equipped with the set of teeth made of hard plastic and lifelike mouth cavity which can bleeds and flows saliva just as human reflects against stimuli.
花子配备的硬塑料和逼真的口腔出血了，可流动的唾液和牙齿，遇到刺激能像人类一样反响。
Unusual cutlery inspired by the very first human feeding means: teeth, nails, and hand palms.
这套餐具的奇妙设计源于人类第一次吃东西的方式：用牙，钉子或者手掌。
Stone tools abound, but human bones from other Asian sites are almost as rare as hens’ teeth.
石制工具大量出土，但在亚洲其他地方发现的人类骸骨几乎是凤毛麟角。
The only reason to have titanium teeth? Medical reasons, he says, like "if a dog breaks a tooth... it's the same as a crown for a human."
他说，狗嘴里镶钛牙的唯一的理由，只能是因为牙科医学上的原因，“如果狗牙断掉了，也可以像人的牙齿一样，作一个牙冠镶嵌在上边。”
The National Museum of Dentistry in Baltimore, Md., has on display one of Washington's lower dentures—made from gold, ivory and lead, as well as human and animal teeth.
—马里兰州巴尔的摩国家牙科博物馆的展品中有华盛顿的下半副假牙，用金子、象牙、铅还有人和动物的牙齿制成。
The National Museum of Dentistry in Baltimore, Md., has on display one of Washington's lower dentures—made from gold, ivory and lead, as well as human and animal teeth.
—马里兰州巴尔的摩国家牙科博物馆的展品中有华盛顿的下半副假牙，用金子、象牙、铅还有人和动物的牙齿制成。
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