上犬齿的

词组短语

saber-toothed

与上犬齿的相关的网络例句 [注：此内容来源于网络，仅供参考]

It will cause loss of the canine guidance, damage of the occlusion, and discoordination of the maxillary and mandibular arch forms.

阻生犬齿引起犬齿导引的丧失、咬合的损伤、上下颚牙弓的不协调。

Any of many extinct cats of the Old and New Worlds having long swordlike upper canine teeth; from the Oligocene through the Pleistocene.

东半球许多已经灭绝的猫科动物，其上犬齿形如长剑；生活在从渐新世经由更新世时期。

Some clinically obvious phenomena are difficult to explain using this model system, for example, the phenomenon traditionally referred to as the "row-boat effect", where uprighting of the canines excessively tipped into an extraction site results in protraction of the molars and "anchorage loss".

一些临床上明显的现象是难以解释利用该模型系统，例如，传统的现象称为"行船效应"，在扶正的犬齿过分倒进萃取结果冗长的网站的臼齿和"锚固损失"。

Walruses have enlarged upper canine teeth, or tusks, up to 3 feet long.

海象具有巨大的上犬齿，或獠牙，可以达到3英尺长。

This lends a hypotonic appearance to this area when, in fact, the upper portions of the canine and

此会给于此区呈现低张力外观，事实上，当犬齿的上部与口轮匝肌是紧绷的时，在吞嚥期间上唇是无法拉下将口关闭起来，取而代之的是下唇需拉上来而使颏肌区变平。

This lends a hypotonic appearance to this area when, in fact, the upper portions of the canine and orbicularis oris muscles are tensed; the upper lip no longer drops down to close the mouth during swallowing, but, instead, the lower lip rises with a flattening in the region of the mentalis muscle.

此会给于此区呈现低张力外观，事实上，当犬齿的上部与口轮匝肌是紧绷的时，在吞嚥期间上唇是无法拉下将口关闭起来，取而代之的是下唇需拉上来而使颏肌区变平。

Both upper and lower dental study models were collected from 30 boys (12 years old) and 30 girls (12 years old) with acceptable normal occlusion to understand the characteristics of the crown size, dental arch width and length such as (1) mesiodistal diameters of crown size from central incisor to first molar,(2) the width and length of dental arch and basal arch and (3) the morphology of dental arch form. After statistical analysis, data were compared with Japanese, Central and South American Indians and North American Caucasians from papers. The results were:(1) There was no statistical difference in teeth size between males and females, except the upper first molar of males was larger than that of females, lower central incisor of males was smaller than that of females.(2) The dimensions of dental arch of males were larger than that of females in general, especially such items as width and length of basal arch.(3) The crown size of Chinese male was in generally smaller than that of four other races, especially the upper canine, lower central incisor and first molar.

为了解住在台湾的中国人其牙齿的大小，齿列弓幅径及形态，为齿科人类学上的特微，以期能对儿童牙科，齿颚矫正科之临床及齿科基础医学能有所贡献，抽取12岁学童男女各30名共60名，可接受为正常咬合之上下颚齿列模型，测量其上下颚(1)左侧正中门牙到第一大臼齿共计12颗恒牙之牙冠近远心径，(2)齿列弓宽径、长径及齿槽基底宽径、长径，(3)齿列弓之形态，以上资料经统计分析作t-test检定，并与诸学者对日本人、北美白人、中美及南美印第安人人种的研究结果作检讨得知；(1)男女性恒牙的近远心径无明显差异，但男性上颚第大臼齿比女性者大，下颚正中门牙比女性者小；(2)男性的齿列弓幅径比女性者为大，尤以齿槽基底宽径及长径最显著；(3)国人男子的牙齿近远心径比其他四人种者为小，特别是国人的上颚犬齿，下颚正中门牙及第一大臼齿最小。

Any suggestion of an overlip obscuring the chin should be penalized.

下颚的门牙呈直线形，下犬齿在前面同一直线上，彼此的距离尽可能宽。

Some clinically obvious phenomena are difficult to explain using this model system, for example, the phenomenon traditionally referred to as the "row-boat effect", where uprighting of the canines excessively tipped into an extraction site results in protraction of the molars and "anchorage loss".

一些临床上明显的现象是难以解释利用该模型系统，例如，传统的现象称为&行船效应&，在扶正的犬齿过分倒进萃取结果冗长的网站的臼齿和&锚固损失&。

The Afghan is the fastest of all canines on rough terrain.

阿富汗人在粗糙的地带上是所有犬齿的最快速的。

与上犬齿的相关的网络解释 [注：此内容来源于网络，仅供参考]

dialog boxes：对话栏,对话盒

saber-toothed 有军刀形的, 上犬齿的 | dialog boxes 对话栏,对话盒 | swinging traverse [军]扫射

incisor：门齿

在自然分类系统中啮齿动物属哺乳纲(Mammalia)啮齿目,最主要的形态特征为上、下颌各有1对锄状门齿(incisor),无犬齿(canine),取代犬齿的位置是齿隙(diastem).

incisor：门齿,切齿

哺乳动物的牙齿由于在切咬、咀嚼上的分工,分化为门齿(切齿)(incisor)、犬齿(canine)、前臼齿(premolar)和臼齿(molar). 门齿为切断食物之用,犬齿为刺穿和撕裂食物之用,前臼齿和臼齿为研磨食物之用. 由于同一种兽的牙齿形状和数目相同,

Machairodontinae：剑齿虎亚科

剑齿虎亚科(Machairodontinae)是哺乳纲、真兽次亚纲、食肉目、猫科的一亚科. 与虎近似,上、下颌骨张开可达90°,上犬齿特别发达,扁平而尖锐,有的边缘呈锯齿状,齿冠高,可达5~6厘米. 中新世至更新世,广泛分布于亚洲、欧洲、非洲及北美.

Otariidae：海狗科

包括海狗科(Otariidae)、海象科(Odobenidae)和海豹科(Phoeidae)3科:海豹科共12属19种,数量多亦最常见;海狗科共6属有14种,具外耳壳和阴囊,多具集群的习性;海象科仅1属1种,上犬齿巨大,露于唇外,成为獠牙.

Ovis：羊属

偶蹄目(Artiodactyla) 牛科(Bovidae) 羊属(Ovis)本科动物胃有四室,反刍. 它们角的开头和大小各有不同,大多数动物雌雄均有角,在本科的49属中只有9属是仅雄性有角. 它们没有上门齿和上犬齿. 它们的体型差异很大,羚羊多大躯体细长优美,

pinked：穿孔的, 击穿的

chain rule 链式法则, 链规则 | pinked 穿孔的, 击穿的 | saber-toothed 有军刀形的, 上犬齿的

Tarsius：眼镜猴

现生的眼镜猴(tarsius)有大的眼眶,膨大的听泡和适应于跳跃的延长的上踝骨. 而鼠猴科不同于现生眼镜猴的是犬齿稍小,门齿长或缩小,某些属的牙齿原始而又具有分化的特征、缺少现生种中延长的次生鼓室的窦等. 头后骨骼明显地原始.

Ursus thibetanus：西藏黑熊

从臼齿结构特徵上看来,马坝动物群中的熊化石显然属於西藏黑熊(Ursus thibetanus)的,但其犬齿之发育程度则与棕熊(Ursus arctos)和洞熊(U. spelacus)的犬齿相似. 这可能属於个体或性别的差异. 所以只能把它划归为西藏黑熊这一种. 描述与讨论,

saber-toothed：有军刀形的, 上犬齿的

pinked 穿孔的, 击穿的 | saber-toothed 有军刀形的, 上犬齿的 | dialog boxes 对话栏,对话盒