三维

At last, in Ansys 9.0 software, by Boolean operation, different parts of the crown （ enamel, dentin and pulp cavity） were separated, and the 3D meshes were created respectively.

再将模型导入Geomagic7软件中进行精修和细化，形成有限元分析软件可识别的实体三维模型，最后，将牙体组织的三维实体模型在Ansys9.0软件中进行布尔运算，区分出釉质、牙本质及髓腔系统，并分别进行了网格划分。

This invention relates to a method and device for generating cold atomic beam. Said method includes heating hot atom source in vacuum chamber to form atomic saturated vapor pressure atmosphere, cooling hot atom by three-D MOT to below 200uk and trapped to form cold atomic cloud, by the quarter wave plate reflection mirror in MOT the laser radiation pressure being unbalanced to make cold atom emitting along said direction, four tape arranged straight line set with contrary current direction is set in atom beam emission direction, which makes the atom emitted to forward to obtain cold atom beam with low speed, large flux and small transverse speed, laser beam vertical with atom beam set in the direction of cold atom emitting for atom beam state preparation to realize state concordant emitted cold atom beam.

本发明涉及一种冷原子束产生方法和装置，该方法包括在抽真空的真空室内，加热热原子源，在真空室中形成相应的原子饱和蒸汽压气氛；采用三维MOT对热原子进行冷却，冷却到200μk以下，并被捕获形成冷原子云团；通过三维MOT中开小孔的四分之一波片反射镜，而使得在该方向上激光辐射压力不平衡，使冷原子沿此方向出射；在冷原子束出射方向上，还置有载有彼此电流方向相反的四根成锥形排列的直导线，从而原子出射时将在磁场的作用下，不会沿横向膨胀而向前射出；便得到了出射速度低的、通量较大的、横向速度非常小的连续冷原子束；同时在冷原子束的出射方向上，设置有与原子束垂直的激光束，用于原子束的态制备，实现态一致的出射冷原子束。

As the wheel load assumed in three dimensional model is more consistent to practical loading, the results are more accurate.

由于三维模型所采用的车轮荷载更加符合实际作用的荷载，所以三维模型的结果更加准确。

Applying the theory to the three-dimension model of warp-knitted loop, the coordinates of some control points defining the loop are amended.

结合此偏移理论，在已建立的经编线圈三维模型的基础上，修正了定义线圈三维结构的部分控制点坐标。

The geometry of three dimension vortex sheet of the sides of foil and its trailing were determined by the kinematic boundary condition.

针对三维舵存在的端部梢涡及其尾涡卷起的现象，提出了一种新的考虑端部梢涡卷起的三维短翼理论计算模型。

Equations representing boundary conditions of faces of intake port、 valve and valve motion as well as opened system including import and export are given.

运用网格生成的微方法以及分块技术，构造了螺旋进气道—进气门—气缸在笛卡尔直角坐标系下的三维伪极坐标网格系统和三维直角坐标网格系统。

In this article, a three-dimensional finite element model of large-scale vacuum transfer line is developed, applying ANSYS program and using 3D solid element and shell element.

本文使用ANSYS程序，选用三维体单元和壳单元，建立了减压转油线管系的三维有限元分析模型。

In this article, a three-dimensional finite element model of four-branch-pipe-joint vacuum transfer line is set up, applying ANSYS program and using 3D solid element and shell element.

本文使用ANSYS程序，选用三维体单元和壳单元，建立了减压转油线五通管系的三维有限元分析模型。

This paper introduces the method of traverse survey using direct measuring three-dimensional coordinates of control point by electronic total station instrument.

介绍采用蔡司C 20全站仪直接测定控制点三维坐标进行导线测量的作业方法，突破了传统的导线测量模式，不需分别测边、测角及内业计算就可自动测定三维坐标并自动平差。

Sytematic introduction of GPS theory and its three sub-systems, with focus on GPS's role in transportation which includes road engineer, auto navigation, traffic supervision and etc, has been presented in this paper. Thanks to its ability to provide continuous high-precision 3-dimensional coordinate all day round, technical parameter of 3-dimensional speed and time information, GPS has been widely used in public transport system in recent 2 years.

本文系统介绍了GPS的原理和其三大子系统，着重介绍了GPS系统在交通运输中的应用，包括在道路工程、汽车导航和交通管理中的应用以及其他应用， GPS全球队定位系统在公交系统中的应用，在最近两年得到了迅速的推广，这主要依赖于GPS系统可以向全球任何全天候地连续提供高精度的三维坐标、三维速度和时间信息等技术参数。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。