这个公式用于计算圆的面积。
从弹塑性理论出发以圆截面轴为例对校正应力与残余变形进行了分析研究，提出了在给定弯曲误差下的校正载荷的计算公式。
The paper has studied straightening stress and residual deformation of circular shaft by using elastic - plastic theory, deueloped calculation formula of straightening loud in given deflection error.
给出了相交圆聚光腔参数的经验公式。
The empirical formula for designing the intersecting circles are given.
本文从尖角铣刀割圆出发，拟出了一套钻头牙轮直铣齿的计算公式。
A set of calculating formulae for vertical milling teeth of drilling bit cones is derived herein from cutting rows with Angle cutters.
本文根据圆的渐开线原理和两点间的距离公式，得出两种用放射式丈量法测画不分道跑起跑线的新画法。
This article utilizes the theory of involute of circle and the formula of the distance between two points to obtain two radiated measurement ways of defining the starting line.
并讨论了“圆型截面桩”与“矩形截面桩”极限阻力计算公式的近似转换。
Then the relationship of the ultimate resistance between round section pile and rectangle section pile is investigated.
值得注意的是对于斜轮而言，公式1和2中的模数和分度圆直径所对应的形更大。
What is noticeable is: to bevel gear, the corresponding teeth shape is bigger to the modulus and reference circle in formula 1 and 2.
对直圆柔性铰链所能承受的最大力矩和最大角位移进行了分析，给出了它们在不考虑应力集中影响下的计算公式。
The maximum moment and maximum deflection of flexure hinge could be applied are analyzed, and their calculating equations are given while stress concentration is neglected.
首先，根据对渐开线齿廓形成原理和渐开线齿轮任意圆上的齿厚公式的分析，建立了插齿刀的渐开线圆柱齿轮齿廓的数学模型。
Firstly, according to the analysis of the forming principle of the involutes profile and the tooth thickness of formula, a mathematical model of involutes profile was established.
这些公式包容了传感器内的各种光学元件对双频左、右旋圆偏振激光束的相位延迟和偏振态改变。
These formulas cover all informations of phase delay and change of polarization states for these beams caused by all optical elements in the sensing system.
利用加速度的定义和曲率圆的概念较简单地推导出了一些曲线运动中加速度的公式，并得出一些重要结论。
This paper helps briefly derivate a general acceleration formula of curvilinear motion with an acceleration definition and the concepts of curvature circle, and obtains an important conclusion.
本文结合实际问题，给出了利用《应力应变公式》中的等厚平圆板公式对受压环板应力的理论计算方法。
Combining practical matters, a method of the stress calculation of circular ring plates under press loading using flat circular plates formula was introduced.
从理论上分析了在纵向外圆磨削过程中砂轮的磨损特点，得出了砂轮径向磨损的计算公式。
The paper theoretically analyzes the abrasion characteristics in the process of the longitudinal circular grinding, obtains the calculation formula of the radial abrasion of the wheel.
给出了非圆齿轮的节曲线极坐标方程，两齿轮中心距的计算方法，节曲线长度、基础圆半径和压力角的计算公式。
The polar equation of non-circular gear pitch curve, calculation method of center distance, formula of pitch curve length, primary circle radius and pressure Angle is given.
详细推导出三测头误差分离原理用于测量工件圆度误差的数学公式；
The mathematical formulas for roundness measurement has been descussed firstly based on the tri-probe error separation technique.
此外，还根据几何关系推导出了工件尖角部位渗碳后加工倒圆的最佳曲率半径公式。
In addition, according to the geometrical relation, the equation for calculating the most suitable transition radius of carburized corner parts was deduced.
目前所见到的圆柱蜗杆蜗轮分度圆弦齿厚计算公式均为近似公式。
There is only approximate way to work out the normal chordal tooth thickness of worm and wormwheel at present.
蜗轮蜗杆的分度圆齿厚在大部分机械手册中都给出了计算公式，但在其它任意半径处的齿厚计算很少有资料涉及。
Formulas are given in many mechanical manuals to calculate the tooth thickness at only the reference circle of worm and worm wheel.
CL公式是根据圆束转换理论创立的。
Cl formula is established on the basis of circle beam transformation theory.
在此基础上得到了常用的直圆双轴柔性铰链转动柔度的设计计算公式。
And it also presented the rotation compliance equation of right circular double-axis flexure hinge which is popular used flexure hinge.
从而可利用材料力学中求解等直径圆轴扭转刚度的一般公式简便地求出变截面阶梯轴的扭转刚度。
It can calculate the torsion rigidity of the variable section step-shaft simply using the general formula for calculating the same diameter shaft which can be found directly in material mechanics.
应用贝塞尔函数理论，求得等厚度圆板和环板单元非对称自由振动传递矩阵的正确公式。
Applying the theory of Bessel function, the exact transfer matrix formulae of the asymmetric free vibration of the circular and annular plate elements with uniform thickness can be obtained.
提出了求加速度瞬心的两种方法，即外接圆法和公式法。
Two methods of establishing acceleration instantaneous center place, namely, a round of outside connection method and a formula method are described.
本文利用等位线导出了截面由圆和正N 边形组成的同轴线特性阻抗的严格计算公式。
By means of Cauipotential lines, exact formulas for calculating the characteristic impedance of the coaxial systems consisting of a circle and a N- resular polygon are derived in this paper.
本文阐明了结晶器锥度的实质，进而导出了水平连铸圆坯用结晶锥度的设计公式。
This article expounds the crux of the mold taper and then deduces the taper engineering formula of the mold for the horizontal continuous caster to cast round billet.
最终导出了大、小偏心统一，圆、环形截面统一的正截面强度计算公式及方法。
Then the unified formulas for calculating sectional strength of the member are derived which are adaptable to both circular or ring cross section with thrust of big or small eccentricity.
提出了一种新的适合于GTR电流型变频器整流器部分的PWM控制方法，推导出了在准圆轨迹PWM控制规律下，整流器输出电压的计算公式和平波电抗器电感量计算的实用公式。
A new PWM control method for GTR current source rectifier is presented. The mathematical formulae that output voltage of the rectifier and inductance of the DC filter are derived.
采用一种新的力学模型，推导了浅圆仓散体侧压力的计算公式。
A new type of mechanical model is presented and a new formula of granular particles lateral pressure in grain squat silo is obtained.
本文研究了凸域内两点间的平均距离公式，利用广义支持函数的方法分别求出了圆、矩形、椭圆域内两点间的平均距离，并给出了具体的求解过程。
By using the generalized support function, we reckon the mean distance of two points of circle, rectangle and ellipse, and deduct the idiographic process.
本文研究了凸域内两点间的平均距离公式，利用广义支持函数的方法分别求出了圆、矩形、椭圆域内两点间的平均距离，并给出了具体的求解过程。
By using the generalized support function, we reckon the mean distance of two points of circle, rectangle and ellipse, and deduct the idiographic process.
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