For a class of graphs, see Fig 1 denoted by A_n, with an axis of symmetry, we obtained its explicit expressions of characteristic polynomial and matching polynomial.

First, we used the principal component analysis to determine the initial axis of symmetry, and then combined the moment of inertia to further pinpoint the accurate symmetry-axis linear equation.

首先，利用主元分析法初步确定对称轴；然后结合转动惯量法进一步精确定位对称轴直线方程；

Only the connected domain that passes through the central axis of symmetry could be considered to be is the region that the vehicle logo is at.

只有经过中心对称轴的连通区域才认为是车标所在的区域，实现车标精定位。

Some simulations show that the imaging results are in much good agreement with the true conductivity profile by array multi information on the axis of symmetry.

一些数值模拟表明，利用阵列多信息能很好地对复杂地层进行成象，且成象结果与真实电导率剖面分布吻合得比较好。

Undersize crankshaft main bearing journals. The important thing to know that it has an axis of symmetry-the optical axis.

尺寸小于标准的凸轮轴主轴承轴颈。重点是知道主镜有一个对称轴&光轴。

The member bearing compression in the truss could be regard as a battened column with the single axis of symmetry.

这种角钢桁架中的受压件在结构上是一个单轴对称缀板柱。

The Axisymmetric Creeping Flow in an Infinite Long Circular Cone with a Sphere Moving Along the Axis of Symmetry

圆球沿无限长锥形管道运动的轴对称蠕流

The second image is obtained by rotating the cross-grating interferometer an angle about its axis of symmetry.

将光栅干涉仪绕其对称轴转过一角度，得到第二个像。

Finding the common tangent of two circular cone curves with the communal axis of symmetry

求具有公共对称轴线的二圆锥曲线的公切线

A Weighted Residual Method for Solving Sloshing Problems in Tanks with a Vertical Axis of Symmetry

具有铅直对称轴容器内液体晃动问题的加权残数解

Electrical boresighting adjustment The important thing to know that it has an axis of symmetry-the optical axis.

光轴与电轴一致性的校准重点是知道主镜有一个对称轴&光轴。

And, of course, that only works if the solid has some axis of symmetry.

当然，前提是物体的对称轴存在。

Please take this barium meal.

请吃这钡餐.

Finish the rest of the barium meal.

最后吞完所剩钡餐.

In 2002, the hostages were held by armed militants in the theater of Moscow axletree factory, this finally led to more than 100 hostages to be death. Russian government used the fentanyl derivatives to rescue hostages.

发生在2002年莫斯科轴承厂文化宫的人质事件，最终导致100多人丧生，俄罗斯政府在解救人质时使用的就是芬太尼的衍生物。

It also researches main quality examination method to adjust the contact clearance of different-speed instrument gear in assemblage, contact position of helix wimble gear accessory and beforehand tightened force of connecting axletree of different-speed instrument and retarder.

提出了通过装配中调整差速器齿轮接触间隙、调整主动螺旋锥齿轮轴承预紧力、调整螺旋锥齿轮副接触区位置、调整差速器与减速器连接轴承预紧力等措施以确保装配质量。

Vibration fault feature of gear and rolling axletree is analyzed. By using the decomposition and reconstruction algorithm of wavelet transform, the fault feature signal of gear and rolling axletree are extracted availably and the results of experimentation are obtained.

分析了齿轮与滚动轴承故障振动信号的特征，利用小波变换的分解和重构算法，有效地提取出齿轮与滚动轴承故障特征信号，得到实验结果。

Close flatness is achieved through adding an axletree used for supporting the feeding device and making the feeding process stable to the air-driven automatic feeding device to solve the problem of poor flatness.

经过改进空气自动送料机，在校平机动力输出对辊后加装一个用于托辅稳定带料的轴辊，解决了平面度超差问题。

The test results show that the fatigue property curve and the cyclic stress-strain curve of LZ50 axletree steel perfectly conform to double logarithm linear relationship.

试验结果表明：LZ50车轴钢的循环疲劳特性曲线及循环应力-应变曲线很好地符合双对数线性关系；

Many pivotal parts such as axletree of machine drive and gear all contain impact information, then can conduct exact diagnosis to equipments through distilling impact information.

机械传动的轴承、齿轮等关键部件的故障信号中都含有冲击信息，通过对冲击信息的提取可以对设备做出精密诊断。

This paper describes the functions of the microcomputer system for measuring sizing errors of axletree components. The measuring method and the software and hardware are given.

文章介绍了轴承壳体冲压件尺寸误差微机检测系统的功能、测试方法、硬件组成及软件系统的设计。