- 更多网络例句与前臼齿相关的网络例句 [注：此内容来源于网络，仅供参考]
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In cultured primordia, molar and incisor tooth germs can easily be distinguished by their appearance and their gene activity, although other shapes found in the human mouth, such as premolars and canines, are more difficult.
在组织培养的牙齿原基里头，可以从外观和基因的活性，轻易分辨出臼齿与门齿的牙胚，不过，人类口腔里的其他牙齿，像是前臼齿与犬齿，就比较难以区分。
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Carnassial : Last premolar of upper jaw, first molar of lower jaw.
裂齿 ：上颚最后的一只前臼齿，下颚最前的一只臼齿。
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Unfortunately, the fourth premolar in the upper jaw is quite large and looks like the first molar in the lower jaw; it is known as a carnassial tooth.
不幸的是，上颚的第四颗前臼齿很大，看起来就象是下颚的第一颗臼齿，这颗前臼齿也被称作叫裂齿。
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Mental and mandibular foramen of 250 Chinese mandibles were studied.
观察250个中国人颏孔及下颌孔的位置所得到的结果如下：1.78.4％的颏孔是在第2前臼齿的下方。2。
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That excavation yielded stone tools, evidence of fire use by early man, burnt seeds of hackberry trees and bones, and fossils of mammals such as jackal and deer.
获得石器和古人类用火的证据灰烬、烧石及烧过的朴树籽以及豹和鹿的化石；1937年又在此发掘，获得古人类前臼齿1枚和动物化石40多种，包括猕猴、鼢鼠、熊、三门马、李氏野猪、赤鹿、葛氏斑鹿等。
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That excavation yielded lithic tools, evidence of fire use by early man, burnt seeds of hackberry trees and bones, and fossils of mammals such as jackal and deer.
获得石器和古人类用火的证据灰烬、烧石及烧过的朴树籽以及豹和鹿的化石；1973年又在此发掘，获得古人类前臼齿1枚和动物化石40多种，包括猕猴、鼢鼠、熊、三门马、李氏野猪、赤鹿、葛氏斑鹿等。
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Absence of more than two first premolars or absence of a first and a second premolar.
缺少超过两个第一前臼齿或者一个第一和一个第二前臼齿。
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Premolar is short, simple structure in front of three, single-pointed.
前臼齿短，前面的三个构造简单，单尖。
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Absence of one incisor or one canine, a third premolar or a fourth premolar or of one molar.
缺一个门齿或犬齿，第三前臼齿或第四前臼齿或一个臼齿。
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From each side, in the upper jaw,(1) is the canine,(3) the small premolars,(1) the large premolar and (2) the smaller molars.
从两边看，在上颚处，各有（1）犬齿，（3）颗小前臼齿，（1）颗大前臼齿和（2）颗小臼齿。
- 更多网络解释与前臼齿相关的网络解释 [注：此内容来源于网络，仅供参考]
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cheek tooth：颊齿
换齿后的门齿和犬齿单根,前臼齿和臼齿(合称颊齿(cheek tooth)的齿根一般在二个以上,但少数种类的前臼齿也有为单根者. 和其他脊椎动物磨损以后随时可脱换的多出齿(polyphyodont)不同,哺乳动物的牙齿除臼齿以外,大多为更换一次的再出齿(diphyodont).
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Dens premolaris：前臼齿
前深颞动脉 - Arteria temporalis profunda anterior | 前臼齿 - Dens premolaris (1) | 前臼齿 - Dens premolaris (2)
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milk dentition：乳齿系
换齿后的门齿、犬齿、前臼齿和臼齿一齐称为恒齿系(permanent dentition);换齿之前的门齿、犬齿、前臼齿称乳齿系(milk dentition). 区别乳齿和恒齿有二点;一是乳齿没齿根;二是乳齿较小. 换齿后的门齿和犬齿单根,
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Permanent dentition：恒齿系
换齿后的门齿、犬齿、前臼齿和臼齿一齐称为恒齿系(permanent dentition);换齿之前的门齿、犬齿、前臼齿称乳齿系(milk dentition). 区别乳齿和恒齿有二点;一是乳齿没齿根;二是乳齿较小. 换齿后的门齿和犬齿单根,前臼齿和臼齿(合称颊齿(cheek tooth)的齿根一般在二个以上,
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deuterocone：上第二尖(上近中颊尖),前臼齿的牙尖
deuterium 氘(音刀) | deuterocone 上第二尖(上近中颊尖),前臼齿的牙尖 | deuteroconid 下第二尖(下近中颊尖)
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premolar：前臼齿
在因(DNA)本身来进行诊断.目前产前诊断的主要手段如下:(1)胎镜诊断,相互作用使杂合体生活力更强.例如人类镰形血红蛋白杂合体(HbAHbS)的红细胞中同时存在成人血红蛋白(HbA)和镰形细胞血红蛋白(HbS)两种血前臼齿(premolar)和臼齿(molar).门齿为切断食物之用,
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premolar tooth：前臼齿
premolar 前臼齿 | premolar tooth 前臼齿 | premunity 传染免疫
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premolar teeth：槽牙,前臼齿,前磨牙
premodern economic history 近代经济史 | premolar teeth 槽牙,前臼齿,前磨牙 | premolded asphalt panel 预制沥青板
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premolar teeth：前臼齿
前臼齿间隙 premolar carrying space | 前臼齿 premolar teeth | 前列腺前尿道 preprostatic urethra
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teeth,premolar：前臼齿
恒齿 teeth,permanent | 前臼齿 teeth,premolar | 暂齿,乳齿 teeth,temporary