This paper puts forward some practical formulae of measuring the area and arc length of arch form, and analyses the relative error of these formulae.
文章提出弓形面积和弧长计量的实用公式，并分析了该公式的相对误差。
An approach to extract feature points on the boundary based on length of arc is proposed in view of the key problem of measuring composite-shape parts.
针对组合形状零件几何尺寸测量中的关键问题—轮廓识别，提出了一种基于弧长的轮廓特征点提取的方法。
The author analyzes the relationship between side and Angle in a diagram to deduce a new general-purpose formula which can determine the length of arc radius and the size of an ellipse.
文中通过分析图形中的边角关系，推导出确定椭圆大、小圆弧半径长度的通用计算公式。
So, the next concept that I want to define is that of arc length.
接下来我想介绍一下弧长。
And, what it does is it actually integrates the speed of the time to give you the arc length along the trajectory of the car.
对速度做积分,告诉你车在轨道上走的弧长。
A xenon arc in which the length of the arc between electrodes is greater than the diameter of the envelope enclosing the arc.
一个氙弧灯，其电极之间的电弧长度大于信封内附弧的直径。
A radian is the Angle subtended by an arc of a circle whose length is just equal to the radius.
一弧度就是长度刚好等于半径的一段圆弧所对的圆心角。
In this paper, a numerical method is presented for nearly arc length parameterization of parametric curve.
讨论参数曲线近似弧长参数化的数值方法。
A numerical model based on the finite element method incorporating an arc-length algorithm for nonlinear full-range analysis of UPC beams was developed.
建立了基于有限元方法并结合一种弧长算法的适用于UPC梁非线性全过程分析的数值模型。
Because arc length of trajectory is regarded as the variant in geodesics based method, it possesses the advantages of non-time based trajectory planning at the same time.
本文的基于测地线的轨迹规划是以轨迹弧长作为参考变量的，因此它还具有非时间参考的机器人轨迹规划的优点。
Conclusion The length of the femur medullary cavity, the form of narrow part and the arc were exerting the conditionality function for designing and applying the Chinese intramedullary nail fixation.
结论股骨骨髓腔长度、狭窄部形态及弧度等参数在交锁髓内钉的设计和应用中发挥着制约性作用。
An artifice of passing through and evaluating bifurcation points and an improvement for the arc-length method are presented.
一个跨越和求取分支点的技巧和对弧长法的一个改进在文中提出。
The critical factor causing the arc length fluctuation to affect the input heat power to the anode proves to be the phenomenon of the current dispersion in plasma arc itself.
文中指出，弧长波动影响阳极输入热功率的重要因素是等离子电弧本身存在着电流分散现象。
At any knots, the nearly arc length are precise for the resulting nearly arc length parametric curve, and it has the unit tangent same as that of the real arc length parametric curve.
所作近似弧长参数化曲线在插值节点处，近似弧长是精确的，并且具有与精确弧长参数曲线同方向的单位切矢。
The solution of arc length of sectional ellipse for geodetic problem, which is based on the direct algorithm of meridian arc length is introduced in this paper.
介绍了利用子午线弧长的直接算法来解算大地问题中截面椭圆弧长的一种直接解法。
Formerly the arc length error for the insulation resistance instrument is defined by scale arc length. At present national standard determines that the percentage of indicated value expresses it.
绝缘电阻表以前是按标度尺弧长定义的弧长误差，现行国家标准规定以指示值的百分数表示。
But at the same time also can make exposed to the environment, arc arc length growth of increased energy loss column.
但同时也会使暴露在环境中的弧长增长，弧柱损失的能量增多。
The experiment show that wire extension and arc length can influence the stabilization of welding process and the welding-seam modeling when using fuzzy-expert system .
试验中发现，采用模糊专家控制系统对焊接过程进行闭环控制时，焊丝干伸长及电弧弧长对焊接过程稳定性和焊缝成型有重要影响。
The effects of cutting area, contact arc length, the geometry of cutting face, back dip angle of PDC cutter and rock performance on force of PDC cutter breaking rock were simulated experimentally.
试验模拟了切削面积、接触弧长、切削面形状、切削齿后倾角和岩石性能对PDC切削齿破岩受力的影响。
Simulation results showed that under conditions of small arc length and high noise, which often occur in practice, the approximate maximum likelihood estimator performs well.
模拟结果表明，在小弧长和高噪声的条件下，这种新的估计器性能优良。
As long as the precise sensing a meridian arc length, we can easily calculate the circumference of the earth.
只要精确测知一段子午线弧长，便会很容易地计算出地球的周长。
Therefore, the control of the stability of the arc length is meaningful for the welding quality and productivity.
因此控制焊接电弧弧长的稳定性，对保证焊接产品的质量和提高劳动生产率都有重要的意义。
This paper presents an interpolation methods for nearly arc length parameterization of parametric curves.
本文提出了参数曲线近似弧长参数化的一种插值方法。
The arc length was taken as the manipulated quantity in the system and the peak current width of welding pulse was varied.
该系统以弧长作为操作量，改变每个周期的脉冲峰值电流的宽度，以达到对焊接弧长控制的目的。
Experiments show that this system has high adaptability to disturbance of arc length and guarantees the stability of welding process even in deep grooves.
实验表明，该系统对弧长扰动有较强的适应能力，可在深坡口中稳定焊接。
According to the principle of calculating meridional arc length, a novel practical formula is given in this paper.
根据子午线弧长的计算原理，推导出一个新的子午线弧长计算实用公式。
The discrete curvature data were arranged; the mean and variance, as well as the arc-length, surface and angle of curved pieces were calculated.
对离散曲率数据进行处理，计算其均值和方差以及弧形件的弧长、夹角、面积等特征量。
The hardware of the system comprises the five sub-systems, i. e. welding power source, arc length controller, welding wire feeder, welding head traveller and detector.
此系统的硬件主要包括五个子系统，即：焊接电源、弧长控制器、送丝机构、焊矩行走机构和检测机构；
The hardware of the system comprises the five sub-systems, i. e. welding power source, arc length controller, welding wire feeder, welding head traveller and detector.
此系统的硬件主要包括五个子系统，即：焊接电源、弧长控制器、送丝机构、焊矩行走机构和检测机构；
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