查询词典 beam

Such lensed fiber tip corrects for the phase front mismatch between the curved laser beam wave front and the planar fiber beam.

本文研究的透镜光纤主要是楔形柱透镜光纤，它的作用是修正激光光束波前和从光纤出来光束之间的相位失配。

As comparing the equation of Gaussian beam in logarithmically storable nonlinear media with one of ordinary optical field in graded-refraction-index media,it's found that a graded-refraction-index will be induced itself when Gaussian beam passes through logarithmically saturable nonlinear media.

光学孤子的产生机理是光与物质之间的相互作用，当介质的非线性效应与光束的衍射效应相互平衡时，光束发生自陷，使得光束能够在空间传输很长一段距离，其横向尺寸不发生变化。

The properties of liquid crystal light value, including the response curves between input and projection beam in real, inversed, and differential state, also the relationship between the transmission of the liquid crystul and the working voltuge when different input beam lumination provided, are measured by facile method.

用简便易行的方法对液晶光阀的工作特性曲线作了测量，包括光阀在正像、反转像和微分像状态读出光强与写入光强的响应曲线，以及不同写入光照度下液晶层透过率与工作电压的关系曲线。

The radial force balance equation for the self-electric field and self- magnetic field of the relativistic electron beam is used to calculate the angular rotation frequency of the relativistic electron beam propagating through the cylindrical wave guide filled with nonneutral plasmas.

首先利用相对论电子束的自电场与自磁场所产生的径向力平衡方程，计算出相对论电子束在稳态非中性等离子体填充的柱状波导中传输的转动频率。

In order to study self-focusing phenomenon of an intense short laser beam propagating in cold,underdense plasma,the more complete ponderomotive force of laser beam propagating with implicate term and Lorenz term was used.

为了更完善地研究强的短脉冲激光在次临界密度冷等离子体中传播时的自聚焦现象，采用了包括洛伦兹项和牵连项的更为完整的有质动力形式。

The structure of the MIGmust be carefully selected, as the tiny change on it will affect beam performance highly, and beam current will fluctuate punily.

减小Bc可以增大电子注的速度比，还可以减小电子注的横向速度零散，但是当电子注的速度比增大到一定值时，电子注的性能就会变得不太稳定。

Poly(1-alk-1-viny pyridinium halides) have also been shown to be good negative electron beam resists with sensitivities as high as 5uCcm-2 in a 20kV electron beam and line widths as low as 0.3um.

波河 (单一 alk 的-1-葡萄树的 pyridinium 卤化物)也已经被显示很好否定的电子光线以敏感 20 仟伏电子光线和线宽度的像 5uCcm-2 一样的高度像 0.3um 一样的低点抵抗。

Insulate the tube type series:Dian tube Pyrocondensation, silicone tube, yellow wax tubes, high temperature casing, waterproof cable connector, environmental conservation rubber coil, beam lines ring, beam lines Block.

三、绝缘管类系列：热缩佃管、硅胶管、黄腊管、高温套管、防水电缆接头、环保橡胶护线圈、束线环、束线座。

The first step is reviewing conventional methods of digital beam forming, including WINER method, Steepest-Descent method, LMS, RLS etc. Then , recent digital beam forming methods in the DS-CDMA mobile telecommunications systems are studied, including the algorithm based on least-squares despread respread Multi-Target array, least-squares Despread Respread Multi-Target Constant Modulus Array , Pilot bit LMS-DRMTA algorithm etc.

本文首先简介传统的DBF算法，包括维纳算法、最陡下降算法、最小均方算法、递归最小二乘算法等；然后介绍基于DS-CDMA移动通信系统的DBF算法，包括LS-DRMTA、LS-DRMTCMA导频LMS-DRMTA算法等；最后给出各种算法的仿真结果及分析。

A correction method for beam hardening, involving simple operations of the original polychrornatic projection sinogram, was presented based on the analysis of three physics properties implied by beam hardening. Its correction principle was deduced mathematically. A noise reduction method was proposed to suppress the noise enlarged by the harden correction by processing the high-frequency and the low-frequency components in the projection sinogram respectively.

在分析射束硬化现象具有的3个物理属性基础上，提出了一种对原始多色投影正弦图进行操作的硬化校正方法，并从数学上证明了其校正原理，针对该方法带来的噪声放大问题，研究了一种基于高、低频信息分类处理的噪声抑制方法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐