对称轴

When the symmetry axis of plutonium component coincides with that of container, the radiation distribution is cylindrical.

从武器上拆卸下的钚部件通常装在特定的密封容器罐内，当具有轴对称结构的钚部件的对称轴与容器罐的对称轴重合时，容器罐外的γ辐射场分布具有轴对称性。

On the axis of symmetry on certain distance from geometric center of the surface, depending on the position of the cropping plane.

当抛物面切割面垂直于对称轴，就得到一个圆形的抛物面，它的焦点位于正中央，即对称轴上距离抛物面几何中心一定距离的地方，。

In contrast, the increases of the ellipticity of outgoing optical waves are obvious with the raise of Faraday rotation in non-fourfold-symmetry structures.

结果表明：在这些结构中，光波均被局域在中心缺陷处；同时，对于具有四重对称轴结构的材料，在其法拉第旋转角增加的同时，出射光波的椭圆率没有明显的增加；但对于不具有四重对称轴结构的材料，其法拉第旋转角增加的同时，出射光波的椭圆率也在增加。

The shape of cross-section is an ellipse folded in half through one symmetry axis, and the axis keeps perpendicular with pinacoid-view.

断面形状为沿对称轴对折的椭圆，此对称轴始终垂直于轴截面，其方向与平面图上的流道中线无关。

The specificity of the surface gained in this way is that when the beam of rays parallel to its axis of rotation falls on it, the beam is reflected so that all the rays meet in one point, known as the focus, in the same way that optical lenses focus light rays in their focus.

抛物线的表面或曰抛物面，是由抛物线围绕其对称轴旋转而成，其特点是，和抛物线对称轴平行的射线波束被抛物面所反射，所有的电波都在同一点汇聚， 1 September，2009 3D 角反射天线作馈源的 5.8GHz 偏馈抛物面天线我们把这点叫做焦点。

In this parer, the features of hot extruding and upsetting on the unsymmytrical shaft parts have been analyzed.

本文分析了非对称轴类零件的热挤镦成形特点，设计了一套适合挤镦成形非对称轴类件的模具装置该装置已用于转向摇臂铀和制动蹄的精锻生产。

Using the straight line which crosses the center point and the crossing point, this paper, puts forward the way choos a certain point on the symmetric axis as an instrument station and then staking out the curve center line point and boundary line point .

提出了以通过圆心和交点的直线作为曲线对称轴，在对称轴上任选一点为测站点，进行曲线中桩及边桩放样的方法，供同行参

We investigated the receiver functions in a horizontally-layered medium with arbitrary oriented hexagonally symmetric anisotropy, and discussed the phenomenon of shear-wave splitting and energy deviation in an anisotropic medium. The anisotropic structure yields patterns of receiver function amplitudes and arrival times on both the radial and transverse components that are a systematic function of source-receiver back azimuth. We also investigated the influence of varying anisotropy parameters, e.g.

采用具有任意方向对称轴的横向各向同性介质系统，探讨了各向异性介质中接收函数表现出的横波分裂、能量偏离等特征，并系统剖析了各向异性介质对称轴方位角、倾角以及各向异性层位分布对接收函数方位变化花样的影响。

A novel approach that uses distributed active agents to extract the basic reflectional symmetry axes in gray images is presented in this paper.

提出一种利用分布式主动智能体提取灰度图像中的基本反射对称轴的新方法，它通过对智能体在局部图像环境中定居、发展以及迁徙和死亡等行为的模拟来检测、编组和连接显著的局部对称轴。

A novel approach that uses distributed active agents to extract the basic reflectional symmetry axes in gray images is presented in this paper. It detects, groups and links the prominent local symmetry axes by simulating the behaviors of the agents such as inhabit, evolve, diffusion and death in local image environme.

提出一种利用分布式主动智能体提取灰度图像中的基本反射对称轴的新方法，它通过对智能体在局部图像环境中定居、发展以及迁徙和死亡等行为的模拟来检测、编组和连接显著的局部对称轴。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。