颈环

唇侧颈环上皮干细胞的增殖和迁移，分化为成釉细胞并沿唇面逐步矿化成为牙釉质。

In the labial cervical loop , the epithelial stem cells proliferate actively and migrate along the labial surface , differentiating into enamel-forming ameloblasts .

结论：鼠切牙唇侧颈环处可能存在牙源性上皮干细胞或前体细胞，为进一步研究牙源性上皮分化和牙组织工程提供细胞来源。

Conclusion : Stem cells or dental epithelial progenitor cells might reside in the cervical loop of the apical end of the rat lower incisor . The present study may provide an excellent cell source for study on the differentiation of dental epithelial cells and tooth regeneration .

方法：取出生后3~4d的SD仔鼠切牙，将切取的颈环结构种植到母鼠肾被膜下，建立组织工程牙齿的体内培养模型。

Methods : Cervical-loop structures were isolated from upper and lower incisors of postnatal 3 - to 4-day SD rats and implanted into the renal capsule of syngeneic SD rat hosts .

牙釉蛋白在大鼠切牙颈环上皮细胞中的表达

Expression of amelogenin in epidermal cells from cervical-loop of rat incisor

大鼠切牙颈环结构成牙能力的实验研究

Odontogenic ability of the cervical-loop structures of rat incisor

通常通过所有者的标志或名字来鉴别颈环。

The neck ring usually is identified by the owner 's symbol or name .

颈环显示着钢瓶现在的所有者的名字。

The cylinder neck ring displays the name of the current owner of the cylinder .

金属颈环预防后牙烤瓷熔附金属修复体崩瓷的随访观察

Cervical metal collar for prevention of porcelain fracture on posterior PFM restoration : A follow-up study

然后利用生成的曲面分别针对无颈环内冠和半颈环内冠两种情况设计出所需内冠；

Finally , the non collar coping crown and the half collar coping crown were designed based on the surface .

锥状顶端装有带螺纹的颈环，可以安装保护性的钢瓶帽。

A threaded neck ring is attached to the tapered end so that a protective cylinder cap can be installed .

此外，处理子宫颈环，以保证进入子宫体是人工授精成功的关键。

Furthermore , manipulation of the cervical rings in order to enter the uterine body is necessary for a successful insemination with A.I.

车有螺纹的颈环固定在钢瓶的锥形端，可以安装保护性瓶帽。

A threaded neck ring is secured to the tapered end of the cylinder to allow a protective cylinder cap to be installed .

而是戴了一个颈环，这个颈环内置传感器，这些传感器和我们的牙套中的传感器同属一个类型，

He instead has a neck collar , and this neck collar has sensors in it , the same type of sensors that are in our mouthguard ,

前方和后方部位具有连续的成釉细胞层，具备切牙颈环的形态和分子特征。

The anterior and posterior aspects maintained the morphological and molecular characteristics of the cervical loop of a continuously growing incisor , with a continuous layer of ameloblasts .

目的探讨子宫颈电环切除术（LEEP）治疗宫颈上皮内瘤样病变（CIN）的临床意义。

Objective Examine the clinical significance of Loop Electrosurgical Excision Procedure ( LEEP ) in the treatment of cervical intraepithelial neoplasia ( CIN ) .

子宫颈电环切除术治疗宫颈上皮内瘤变的疗效研究

Loop electrosurgical excision procedure in treating 68 patients with cervical intraepithelial neoplasia

颈前路环钻法减压珊瑚羟基磷灰石植入术

Anterior Cervical Discectomy with Coralline Hydroxyapatite Porous Implantation

本研究比较了支架和颈动脉环切术&通过小管打开血管，采用常规手术步骤清楚颈部动脉中的阻塞。

The study compared the use of stents_small tubes that prop open blood vessels_with a common surgical procedure for cleaning out blockages in the carotid artery .

颈段气管环的形态观测及临床意义

Morphological measurement and clinical significance of the cervical trachea ring

方法将10只大耳白兔分成动脉缩窄组和对照组，建立兔颈总动脉环缩狭窄，使用脉冲多普勒超声系统考察缩窄下游的湍流流场及对侧血管的层流流场；

Methods Rabbit carotid artery coarctation model was made and pulsed Doppler ultrasound system was used to detect the flow profile and turbulent shear stress downstream of the coarctation .

基德红就起来杀了则巴黑和匝耳慕纳，拿去他们骆驼颈上的月牙环。

Gideon arose and killed them , and took the ornaments off their camels'necks .

提示：脑外伤均合并颈外伤，即环枢椎半脱位等。

It is suggested that brain trauma may always be accompanied with cervical trauma , that is , atlantoaxial subluxation , etc.

我从脸上掠开面纱，我从颈上扯下红玉的颈环，扔在他走来的路上。

I swept aside the veil from my face , I tore the ruby chain from my neck and flung it in his path .

三维数值模拟结果表明，颈缩区温升比非颈缩区高，且多重颈缩在环周上的分布服从泊松分布。双侧颞浅血管同期预构颈区扩张皮瓣治疗双侧面部瘢痕挛缩畸形

The multiple necking fracture distribution on the circumference yields to random Poisson distribution . Application of the prefabricated cervical expanded flap with bilateral superficial temporal vascular implantation to repair the bilateral facial scar