查询词典 decayed tooth

Comparing the chordal actions of double-tooth and single-tooth chains, the single-tooth design is better because its chordal action is smaller.

本论文并比较齿形双目链与齿形单目链的弦线作用，发现齿形单目链模式Ⅱ其弦线作用最低，齿形单目链模式Ⅰ次之，而齿形双目链弦线作用是最大。

In this paper, taking the equdistant curve of short spoke epicycloid as original tooth profiles, the conjugate internal gear tooth profiles (quasi-cycloid) and the pinion cutter tooth for cutting the internal gear are obtained.

本文以短幅外摆线的等距线为原始齿廓，求取了与之共轭的内齿轮齿形及切削这种内齿轮的插齿刀齿形，并寻求了用三圆弧替代插齿刀齿形的方法。

Delicate Check: sleeve crown of false tooth, magnetism fixed false tooth and other delicate attachment of false tooth

精密修复：套筒冠义齿，磁性固位体义齿，栓道义齿等精密附着体义齿

And he is good at root canal therapy, beauty and white teeth, periodontal disease, pull out wisdom tooth and all kinds of movable false tooth repair and white such as CEREC3D, all ceramic, ceramic inlay, veneering,noble metal Crown, ect.. Studying in tooth implant field in-depth.

擅长显微根管治疗，牙齿美白，牙周病的系统治疗，智齿的拔除以及各类义齿的修复，特别是CERC 3D全瓷冠，瓷嵌体，瓷贴面，贵金属烤瓷牙等高端烤瓷牙的美容修复，在牙齿种植领域具有较深的研究。

After analyzing the curvature of the forming surface and the relativ emotion between the forming surface and the curved tooth surface during envelope tooth cutting,the authors work out the equations for calculating the induced normal curvature and geodesic deflection,the principal curvature and direction of the tooth surface of this kind of circular-arc gear .

通过对产形面曲率和包络切齿时产形面与齿曲面相对运动关系的分析，推导出双向圆弧齿轮齿面的诱导法曲率、诱导短程挠率和齿面的主曲率、主方向等计算公式。

So not only can the clearance food remnant, the tooth noodles germ spot and dental calculus filth, prevent°from the formation and deposition of tooth stone calculus, and can also rise to massage a gum, promote blood circulation, strengthen a tooth to organize for week of the function of anti-disease ability.

这样不仅可清除食物残渣、牙面菌斑、牙垢污物，防止牙结石的形成和沉积，而且还能起到按摩牙龈，促进血液循环，增强牙周组织的抗病能力的作用。

The outside source applies color is because the tooth surface exists various germs, they secrete many sticky sex materials in the tooth surface, everyday the tea dirt in the food, smoke Zi, and drink aquatic and some mineral qualities and people the mineral quality within saliva adsorb on these sticky sex materials to form germ spot and tartar and make tooth yellow gradually or black.

外源性着色是由于牙齿表面存在着多种细菌，它们在牙齿表面分泌许多黏性物质，日常饮食中的茶垢、烟渍、以及饮用水中的某些矿物质和人们唾液中的矿物质吸附在这些黏性物质上形成菌斑和牙石，逐渐使牙齿变黄或变黑。

The coalescence that still has already roasted porcelain tooth and radicle tooth is easy gathering germ the spot, the formation tartar, should notice to sweep, the crevice between teeth can be used dental floss from the Jie, and periodical get to hospital of check, Jie tooth.

还有烤瓷牙与基牙的接合处容易聚集菌斑，形成牙石，应注意清洁，牙缝间可用牙线自洁，并定期到医院检查、洁牙。

Tooth decay begins when teeth are not cleaned properly after eating.In just one hour,plaque bacteria will start converting sugar and starch particles into harmful acids that attack the tooth enamel.Within 24hours,plaque can harden to form tartar,which can only be removed by aprofessional.Help prevent tooth decay and gum disease by cleaning away plaque at the gum line each day using Glister Multi-Action Fluoride Toothpaste and rinsing with Glister Concentrated Mouthwash.

A：进食后没有适当清洁牙齿，是蛀牙的导火线短短一小时，已足够让牙垢膜细菌把糖份及淀粉质转化为有害的酸性物质，侵蚀珐琅质24小时内，牙垢膜便会硬化，形成牙石，必需由牙医清除要预防蛀牙及牙周病，建议你每天使用丽齿健氟素牙膏，清除积聚于牙龈边缘的牙垢中国化妆品代理网膜，再以丽齿健浓缩漱口水漱口

The line,at which the tooth intersects the graduated cylinder,is an arc in the developed surface of the cylinder.The tooth profile in the middle section of tooth width is an involute.

它的特点是：轮齿与其分度圆柱面的交线在分度圆柱面所展开的矩形中为圆弧；而且在齿宽中央截面内为渐开线齿形。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。