查询词典 beam-focusing

The dissertation mainly studied the key techniques which are the mathematics modeling of cone-beam CT simulation system, and the parallel rapid simulation of the projection imaging with STL phantom models. Then a cone-beam CT simulation system platform was developed, which provided the projection simulation for compounding phantoms, non-point X-ray source and multiple X-ray spectrums.

本文重点研究了锥束CT仿真系统的数学建模、STL样本模型投影成像的并行快速仿真等关键技术，开发构建了一个支持混合样本、非点光源与多光谱投影仿真的锥束CT仿真系统平台。

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。

The influence of paraxial incident Gaussian beam on the beam evolution in nonlocal nonlinear material.

偏离束腰入射对非局域非线性介质中高斯光束演化的影响。

Generally speaking, a certain diameter of the laser beam penetration depth as the beam power increases.

一般来说，对一定直径的激光束，熔深随着光束功率提高而增加。

Electron Beam Ion Trap uses highly compressed electron beam to ionize ions and atoms to produces highly charged ions. lonization stages of almost any element in the Periodic Table can be produced and trapped for several hours in the EBIT.

电子束离子阱用磁场中高度压缩的高能电子束来电离离子以获得高价态离子，它可以产生元素周期表中任何元素任何价态的离子，并且能够在EBIT中的强磁场和静电势阱中约束足够长的时间。

In electronics, the ability of the CRT phosphor dots to withstand local over- heating due to the conversion into heat of the residual energy of the electron beam, i.e. that part of the electron beam energy that is not converted into visible light.

在电子学中，指阴极射线管的荧光粉承受局部过热的能力，这种过热是由于电子束的残余能量，即电子束没有转变成可见光的那部分能量，转变成了热。

Advanced optical technology and high speed scanning animation technology, long life-span, low power consumption; showing graphics with the function of rotating, zooming, rolling, moving, 3D animation effect, stroboscopic action; can write word, picture, animation graphic, beam performance, and unique laser beam advertisement.

先进光控技术和高精度振镜扫描动画技术，寿命长、功耗低、图案具断笔、旋转、缩放、翻滚、移动、点渐绘、三维动画、频闪等效果、可做文字表演、动画表演、光束表演、激光广告等特有光束。

An electrostatic deflection-type camera tube has the following advantages: The small electron beam spots over the entire the scanned area provide uniform and high resolution picture, normal beam landing performance and deflection linearity are also excellent.

磁聚焦静电偏转和静电聚焦静电偏转型摄像管具有图像失真小，分辨率高且均匀，电子束易于垂直上靶，阴影小等优点，所以受到人们的重视。但图案偏转电极的形状复杂，非对称场的计算较困难。

Diagram paper 9:The 1 F floor plank goes together with Jin diagram, the 5 F floor plank to go together with Jin diagram, the 1 F beam flat surface to go together with Jin diagram, the 5 F beam flat surface to go together with Jin diagram, 1 F pillar to go together with Jin plane chart, foundation flat surface to arrange diagram, foundation flat surface to set out big kind diagram, 3 stalk frames to go together with Jin diagram, stairs flat surface to arrange diagram and stairs plank to go together with Jin to arrange diagram.

图纸9张：一层楼板配筋图、五层楼板配筋图、一层梁平面配筋图、五层梁平面配筋图、一层柱配筋平面图、基础平面布置图、基础平面布置大样图、3轴框架配筋图、楼梯间平面布置图及楼梯板配筋布置图。

When the optical fiber which is drawn by the magnetooptic glass with the rodintube method is put in the magnetic field produced by Helmholtz coil and while the linearlypolarized beam goes through the fiber, the polarization plane of the linearly polarized beam is rotated to a certain angle.

将采用模管法拉制成的磁光玻璃光纤置于亥姆霍兹线圈产生的磁场中，当线偏振光通过该光纤时，其偏振面旋转一定角度，把该角度转换成光信号的强度，然后再用仪器进行检测。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。