半径的

Comprehensively making use of the basic theory, such as Space Analytic Geometry, Gear Meshing Engagement Theory, Method of Mathematical Calculation, Theory for Error Analyzing and Data Processing, the author has established the mathematical models of the new method, which has included the analytic mathematical model for precision orientation, the mathematical model for the ball's diameter and the measuring diameter, the mathematical model about the ball's centre, the calculation model for tooth alignment diviations and the model for tooth alignment error evaluation.

本文综合应用空间解析几何学、啮合原理、计算方法、误差理论与数据处理等有关基础理论，推导建立了新方法的数学模型，包括：确定定位关系的解析法数学模型，测球直径与测量半径的数学模型，测球球心的数学模型，齿向偏差的计算模型以及齿向误差的评定数学模型等。

Within a radius of 3 km from the apiary site, nectar and pollen sources consist essentially of organically produced crops and / or spontaneous vegetation, and other crops treated with low environmental impact methods.

基本上由有机的作物或自然的植被或其它的较少受到环境影响的作物组成的花蜜和花粉源在养蜂场半径的3km之内。

He remembers from his school days that the area of a circle is proportional to the square of its radius, and expects that in the case of a uniform distribution, the number of stations counted should increase like the sequence of number 1, 4, 9, 16, and so on.

他记得他学生年代的时候，一个圆形区域的面积和它的半径的平方是成比例的，所以他认为在均匀分布的情况下，汽油站的数目应该以1，4，9，16等等这种数列增加。

When doping the rare earth elements in nano-TiO〓, the relationships between the photocatalytic activities and the ratio of electronic affinity to ionic radius of doped atomic ion were studied.

在稀土元素对纳米TiO〓光催化剂的掺杂研究中，发现催化活性与掺杂元素的稳定氧化态的电子亲和势与离子半径的比值Ea/r有较好的相关性，而与Ea/r〓的相关性相对较低。

The horizontal north vector is tangent to the earth and hence the rotation is the result of earth curvature.

由于地球旋转而引起的离心力随纬度θ到地轴距离的变化而变化以及由极向扁率引起的地球半径的变化而对重力资料进行的校正。

Leaf blade 10--15 cm wide, base cordate; primary lobes separate for at least 60% of blade radius; central lobe rhombic, 3-lobulate, distally few dentate, apex acute; ultimate lobules narrowly ovate; proximal leaves withered. Raceme 6--30 cm, 3--15-flowered, sometimes corymbiform, glabrous; proximal bracts sometimes leaflike, distal ones small, linear or subulate.

叶片10-15厘米宽，基部心形；初级裂片短于叶片半径的60%；中央裂片菱形，3具小裂片，上部很少具牙齿，先端锐尖；末级小裂片狭卵形；下部叶枯萎。6-30厘米的总状花序，3-15开花，有时伞房花序状，无毛；有时叶状的下部苞片，上部的小，线形的或钻形。

The results indicate that the largest deformation appear on the middle region of the addendum, the position of largest stress appears at the dedendum region of loaded tooth. As the curvature radius of transition curve rising, both the largest deformation and the largest dedendum stress reduce.

结果表明，内齿圈的最大变形出现在齿顶的中间部位，而最大应力出现在受载齿的齿根部位；内齿圈的最大变形和齿根最大应力随着齿根过渡圆角半径的增大而减小。

The theoretical analysis indicated because in the optical fiber core base mold and disseminates in the envelope as well as in the spreading level Whisperin between the g2gallery pattern coupling, caused the curving loss vibration, this article the curving loss has carried on the simulation analysis to the single model optical fiber in along with the bevelling radius change.

理论分析表明由于光纤纤芯中的基模和在包层以及涂覆层中传播的Whisperin g2gallery 模式之间的耦合，引起了弯曲损耗的振荡，本文对单模光纤中弯曲损耗随弯曲半径的变化进行了仿真分析。

There is a good linear relation among the height of semi-circle Drawbead, the thickness reduction and the equivalent strain of the sheet, The letter two will be risen along with the height of semi-circle drawbead.

筋高与板料的减薄量和累积等效应变之间存在良好的线性关系，随着筋高的增大二者也增大；并且拉深筋的各圆角半径的增大都使减薄量和累积等效应变减小。

A kind of quatratic programming technique,Potential Reduction Algorithm,is used for solving the optimization problem.

本文利用二次规划方法，讨论对神经网络训练样本的吸引半径的优化问题，并借用二次规划中的PRA算法求该优化解，得到一种新的神经网络基于规划的学习算法。

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。