The temperature characteristics of two-beam coupling in photorefractive crystal was discussed by using the one-carrier and one-level band-conduction model.
用单载流子一能级带导模型讨论了光折变晶体双光束耦合的温度特性。
The experiments , comparison and analysis for the three thickness measurement methods :two-beam diffraction method , contamination spot method and contamination line method were carried out.
前言：对用电子显微镜测量薄膜厚度的三种方法：双束衍射法、污斑法、污线法进行了实验及比较分析。
A two-beam technique has been presented as a new method to adjust laser-ablation rate. An adjust accuracy of about two orders of magnitude higher than that in usual one-beam technique was obtained.
提出了一种精密调节激光烧蚀速率的方法——双光束技术，得到了比单光束技术约高两个数量级的调节精度。
Two different kinds of failure patterns have been observed and the failure of strengthened beam is attributed to the principal stress at the end of steel plate.
明确加固梁具有两种不同破坏模式，其破坏是由钢板端部的主应力大小决定的。
There are two primary ILH system configurations available, Open Beam and Closed Beam.
ILH系统有两种基本的配置结构：开放式和密封式。
The residual strain fields at composites interface were studied with two convergent beam electron diffraction (CBED) techniques.
用两种会聚束电子衍射(CBED)技术研究了复合材料界面残余应变场。
The coupled differential equations of the dimensionless beam width parameters of two optical beams are solved.
求解了两光束无量纲束宽参量的耦合微分方程。
The calculations show that the plan of two transversal and one longitudinal secondary beam planning is more reasonable.
综合分析表明，采用两横一纵的次梁布置方案较为合理。
Based on HIO algorithm, binary optical elements for spatial beam shaping are designed. For Gaussian beams, the shaping result is put forward through two different ways.
基于HIO算法，设计了用于光束整形的二元光学元件，从两条不同的途径给出了高斯光束的整形结果。
The paper then compares the calculation results of the two beam models and reaches a beneficial conclusion.
将两种梁模型的计算结果进行了比较，得出了有益的结论。
Considering the demands of yaw steering for InSAR satellite formation, two beam synchronization strategies meeting the demands of yaw steering were put forward.
考虑到干涉SAR卫星编队姿态偏航导引要求，提出了两种兼顾偏航导引的编队波束同步方法。
Then give two feasible method, eccentricity beam method and double pinhole method.
为此我们提出两种实现方法，偏心光束法和针孔调焦法。
The combination resonance of a simple supported beam under two excitation forces was studied.
研究了简支梁在两个激振力作用下的组合谐波响应。
During pipe line laying or large beam support welding, it often meets crossover of two or multi different axis large diameter pipe piece.
在管道铺设或大型梁架焊接过程中，往往会遇到两个或多个不同轴线的大直径管件相交的情况。
Sacred Heart Cathedral in Guangzhou built in Tongzhi two years (1863), its original roof is wooden beam framework.
广州圣心大教堂始建于清同治二年(1863年)，原屋顶为抬梁式木构架。
Located in the pioneering Seaport District of Boston, the property consisted of two brick and beam warehouses built in 1895.
这个建筑位于波士顿先驱海港区，由两栋1895年建成的砖梁结构仓库组成。
Our raster system divides one beam into two beams, making them intervened, which can get one face by one marking, improving speed a lot obviously, and it can mark even clearer figures.
我们的系统采用光栅来使一束光分成两束，让它们干涉，这样一次标刻的就是一个面，速度明显提高了很多，且标刻的图样也很清晰。
At present, The calculation method of continuous board and beam under vertical loads has two methods: elastic method and plastic method.
目前，对钢筋混凝土连续梁板在竖向荷载作用下的计算，常用的有两种方法，即按弹性方法计算和按塑性方法计算。
This paper mainly analyses two scheme designs of focusing system by using the conjugate relation between pupil plane and image plane in Gauss beam.
文章应用高斯光束的瞳平面和像平面的共扼关系，分析激光聚焦系统的两种总体方案的设计。
We adopt two kinds of small world model and scale free BA model to construct the beam transport network.
本文采用两种小世界模型和无标度模型构造出了束流输运网络。
Students will determine the relative stiffness of two aluminum beam test specimens of equal cross sectional area but different cross-sectional shape and see how they conform to theory.
学生要确定两个横截面面积相同而形状不同的铝梁实验样本的相对刚度，并研究结果如何与理论一致。
Based on the demands of two limit states, the design control equations of cross section for prestressed concrete beam are derived and the direct design method is presented.
根据两类极限状态的基本要求，建立了预应力混凝土梁截面设计的控制方程，提出了直接设计方法。
Under the weak beam conditions, there are four ion acoustic wave modes, of which, two correspond to the slow and fast solitary waves.
在弱束流的条件下，四种离子声波模式中有两种分别对应慢孤波和快孤波。
Influence of position of output mirror on beam of two rod solid state laser has been analysed by means of matrix optics and experiment.
采用矩阵光学理论和实验相结合的方法，分析了输出镜对双棒串接固体激光器输出光束的影响。
That cyclotron's energy beam will be directed to five treatment rooms, each over two stories tall.
回旋加速器的能量光束将被引导到5个治疗室中，每个都超过2层楼高。
To meet the technical requirements of KM6 solar simulator optical adjustment system, two kinds of schemes are put forward to collimate the semiconductor laser beam.
根据KM6太阳模拟器光学装校系统的技术要求，文章提出了半导体激光器输出光束的两套准直方案。
Two issues related to the stability of large span beam bridges with high piers are introduced and discussed in this paper.
对于高墩大跨梁桥，由于其日益广泛地采用高强材料和薄壁结构，因而稳定问题也就更显重要。
We present a quantum key distribution system based on two polarization beam splitters, by means of which the phase modulator's polarization dependence is cancelled out.
提出了利用两个偏振分束器的量子密钥分发系统，有效地解决了相位调制器的偏振依赖性问题。
We present a quantum key distribution system based on two polarization beam splitters, by means of which the phase modulator's polarization dependence is cancelled out.
提出了利用两个偏振分束器的量子密钥分发系统，有效地解决了相位调制器的偏振依赖性问题。
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