查询词典 tooth

Although this is an old idea, and was shown as a prototype at Comdex in 2001, the idea of virtual keyboards is now a reality and this blue tooth device may actually work.

尽管这个主意早在2001年计算机展销会上出现了，不过如今已成为事实，这个蓝牙设备可能即将投入工作。

Then we hypothesize that mesenchyma stem cells from DAC are heterology,which have the potential ability to regenerate root/periodontal complex structures as a new kind of seed cells. Therefore, this study focuses on characteristics of the mesenchyma stem cells at tooth root developing stage and the evaluation of the possibility of being seeds cells.

因此，本研究拟对牙根发育期相关间充质干细胞的生物学特性进行研究，探讨其作为种子细胞在牙根/牙周组织工程中应用的可行性，以期为组织工程化牙根/牙周组织构建优选新的种子细胞。

The prevalence of root concavity in maxilla, excepted in anterior region, is higher than that of corresponding positional tooth in mandible.

上颚牙齿中除了前齿外，其余牙曲的牙根面凹陷的发生率均较下颚相对位置的牙齿为高。3。

A design method of non-perpendicular pitch cone of the honing wheel is presented in this article. By adjusting the distance from the contact point of pitch cones to the axis of honing wheel, the relative velocity between pitch cones is ensured to be in the direction of the tooth trace of the gear.

提出了用于珩磨螺旋锥齿轮的非正交珩磨轮节锥面的设计方法，通过调整节锥面切点到珩磨轮轴线的距离，保证了节锥面之间的相对速度恰好沿着齿长方向。

Conformal mapping function of tooth profile of evolvent gear was inferred by means of the series method.

本文采用级数方法推导出了渐开线齿轮齿廓的保角映射函数，不仅具有重要的理论意义，而且计算简便、映射精度高，具有重要的实用价值。

According to theory of the conjugate curves and the envelope curve,the corresponding mathematic model of workpiece-tooth-curve was established.

并根据共轭曲线及包络线理论建立对应工件齿廓曲线的数模型，由二者的数学模型建立完全接触面积的算法。

This paper analyses the shape of Conjugate Curve of the profiee of pin tooth,develops the formula for computing the curvature of the comjugate curve, and completes the quantitative analysis of conjugate property of the circular arc and pin gears,This paper provides the theoretical foundation for the synthesis of circuler-arc and pin gear transmission.

本文分析了针齿齿廓的共轭曲线型式，推导了共轭曲线的曲率计算式；对圆弧针齿齿轮共轭性作了定量分析，为圆弧针齿传动的综合提供了理论依据。

The function of the contact line for the conjugate tooth trace is solved by this contact trace function; and also solved the parameters of the contact trace.

根据此齿面方程求解出了共轭齿面的接触线方程；并通过实例求解出了与齿面接触区密切相关的参数解。

The involute tooth shape is one that results in a constant velocity ratio, and is the most commonly used of such shapes today.

渐开线状的齿就可以提供恒定的速度比，它也是目前最常用的齿轮形状之一。

When the dentist at last removed the cotton-wool from my mouth, I was able to tell him that he had pulled out the wrong tooth.

当牙医最后将棉花从我的嘴里拿走的时候，我才能够告诉他，他拔错了牙。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。