查询词典 beam-focusing

A new scheme for laser beam focus position error compensation is proposed, In this scheme, a decomposing compensation scheme, the compensation action along laser beam is decomposed to three orthogonal straight-line coordinates: X、Y、Z, without extra actuator.

论文提出了一种新的激光焦点位置误差补偿方案，该方案不需要专门的执行机构，而是将激光聚焦头沿着光轴方向的补偿运动分解到机床的X、Y、Z三个直线运动座标上，称为分解补偿方案。

For the requirement of high efficiency light emitting diode luminaries and the characteristics of automotive headlamp exit beam,based on non-imaging optical theory,a theory model for new type LED parabolic reflector optimal design is established to maximize the utilization of light energy of the reflection cup and to realize the asymmetric light intensity distribution of the headlamp exit beam.

针对当前发光二极管灯具的高效率要求和汽车前照灯出射光束特点，根据非成像光学理论建立了新型LED抛物反射器优化设计的理论模型，实现了反射杯光能利用率的最大化和前灯出射光束的不对称光强分布，进而依据该模型设计了新型反射式LED汽车前照灯光学系统。

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。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。