前齿

Two-stage placement of a dental implant is a well-established method for restoring a missing anterior tooth; however, replacement of an anterior tooth by using two-stage implant surgery may result in changes in the interdental papilla height and loss of alveolar bone with compromised esthetic results.

两阶段配售牙科种植体是一个行之有效的方法恢复丢失的前牙，但是，更换一个前牙采用两阶段植牙手术可能导致牙间乳头的改变高度和齿槽骨丧失影响美观的效果。

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。

You can be treated hospitably in Mr. Guo's chef before drinking aperitif and enjoy the delicate and tasty hors'd oeuvres.

你可在享用开胃酒前在郭先生的厨房内受到他热情的招待，并品尝一下精致、齿颊留香的餐前小食。

Methods A retrospective study was performed in a group of unoperated bilateral complete cleft lip and palate patients who received simultaneous primary palate repair and alveolar bone grafting.

按照唇腭裂序列治疗的现代概念，腭裂修复应在语音发育开始前完成，一般在出生后 9～ 12个月进行，而齿槽嵴裂植骨修复术的最佳时间应在尖牙未萌出前，牙根形成 1/ 2～ 2 / 3，患者年龄为 9～ 11岁[1] 。

Especially in processing of the special metallic materials. According as the adaption orthogonal tool edge bottom diameter and scraps' groove of taps ,using computer aid design the taps' trough shapes of taps, in order to tangency of the orthogonal .scraps' groove and tool edge' hack angle, making the scraps into streamline rolling scraps.

尤其被加工材料是特种金属时，根据丝锥所适合的前角、刃瓣、心径以及所允许容屑槽大小，运用计算机辅助设计改进丝锥槽形，使得丝锥前角、槽底圆弧以及齿背角光滑连接，切屑成流线形卷屑。

Pre-grinding gear hobs are widely used as the rough machining cutters for hardened gears with high precision, for they can leave undercut at the root of the gears'teeth.

由于磨前齿轮滚刀能够使得被加工齿轮轮齿根部产生一定量根切，所以被广泛用作高精度硬齿面齿轮的粗加工刀具。

"Card:a wire-toothed brush or a machine fitted with rows of wire teeth, used to disentangle fibers, as of wool, prior to spinning."

梳理机：一种钢丝齿的刷子或装有数排钢丝齿的机器，在纺纱前用于理清纤维，如羊毛纤维。

A wire-toothed brush or a machine fitted with rows of wire teeth, used to disentangle fibers, as of wool, prior to spinning.

梳理机一种钢丝齿的刷子或装有数排钢丝齿的机器，在纺纱前用于理清纤维，如羊毛纤维

The purpose of this study was to evaluate the changes on the tongue movement during swallowing before and after orthodontic retraction of anterior teeth using ultrasound technique. The subject consisted of four men and nine women, with a mean age of 21.3 years old. The subjects were undergoing orthodontic treatment with extraction, and there were at least 3mm space left on each side between lateral incisors and canines.

在齿颚矫正治疗时，常常利用拔牙的方式让前牙往后方移动，而这样的移动是否会影响舌头的运动及功能则有待验证；本研究的目的是使用B+M模式口腔超音波防震扫描技术，去评估接受拔牙治疗之矫正患者，在前牙后退完成之后，舌头吞咽运动的时间和振幅是否会改变，并检测前牙距离、角度的改变比率和舌头吞咽运动改变比率之间的相关性。

Lock it by dropping the seatpost, then swing the front wheel under and round, and tuck it in next to the rear wheel, with the derailleur nestled between the front wheel spokes.

折叠前须将链条变到后飞轮最小齿，接著将后轮往前荡向主管下方，下滑座杆将之卡住；再来把前轮向车身收折至后轮旁，此时后变速器会恰好介於前后轮钢丝间；最后将立管放下折向另一边。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。