Third, the beam spot size on target is increased by using a diffusing foil.
并用散射的方法扩大靶上的束点。
The size of beam spot of EBW is important factor which affects weld configuration.
电子束焊接焦 点的大小是影响焊缝成型的重要因素。
Using CCD to measure the beam spot can gain the two-dimensional scanned result in a real-time manager.
用CCD测量光斑可以及时获得光斑的二维扫描结果。
To appreciate the laser safety, we introduce a beam spot measurement method of laser long distance irradiation.
本文从激光安全评价出发，介绍一种远距离激光束光斑测试方法。
The parameters are laser power, power density, beam spot size, welding speed, laser mode and auxiliary gas blow.
研究了激光焊缝质量与激光焊接工艺参数的关系；
An online beam spot diagnostic system for high current, short pulse electron beam based on Cerenkov radiation is introduced.
介绍了一套基于切伦科夫辐射的用于强流短脉冲电子束束斑实时测量的装置。
Three dimentional beam profiles on thefocal plane are showed. The central peak intensity and width of the beam spot are given.
给出了高斯参数与中心峰值强度及光点直径的定量关系；
We adopted Gaussian beam, ray tracing and vector diffraction integration together to analyze single beam spot-focusing lens antenna.
本文采用将高斯波束法，射线追迹和矢量衍射积分相结合的方法来分析单波束的点聚焦透镜天线。
The highest speed of the irradiation bed can be determined by the frequency of modulator, scanning width, and the size of electron beam spot...
根据速调管调制器主振脉冲频率、扫描宽度和电子束的束斑大小可以定出辐照床的最高运动速度以实现高效率的辐照。
The results show that the beam spot of the DHEGB rotates with propagation distance, and the propagation property is closely related to the decentered parameter.
研究结果表明，DHEGB光斑随着传输距离发生了旋转，传输特性与离轴参数有密切关系。
The characteristic of the cracked beam spot are studied statistically for different emitting beam shapes and beam qualities, and with different turbulent effects.
对发射光束取不同形状和不同光束质量时，在不同湍流强度情况下的传输进行了计算，并对碎斑特征进行统计分析。
It is also evident that for metallic and non-metallic microbeads the momentum coupling efficiency has different variation tendencies versus the focused beam spot diameter.
实验中还发现，金属小球和非金属小球的动量耦合系数随脉冲焦斑直径的变化趋势完全不同。
Based on the configuration characteristics of PSD, Analyzing the working principle of PSD, the output current of PSD is only connected with the center of gravity of beam spot.
基于PSD结构特点，系统的分析了PSD的工作原理，即PSD输出的电流只与光斑的重心位置有关。
During the welding process, the computer will modify the position of the electron gun based on the deviation to make the electron beam spot centered on the annular weld groove.
在焊接时利用处理后的偏差值在圆形焊缝相应位置不断修正电子枪的位置，从而达到电子束束斑与焊缝自动对中的目的。
However, the intensity of original laser beam spot can not be distributed uniformly, which is bad for controlling the laser sintering condition. And the ceramics may be destroyed.
但原始激光束光强的不均匀分布影响了陶瓷改性的一致性，不利于激光烧结工艺的准确控制，严重者还会损坏陶瓷。
Effects of pulsed laser parameters such as laser wavelength, beam spot size, pulse energy and pulse duration on threshold energy in laser simulating Single Event Effect testing are analyzed.
分析了在激光模拟单粒子效应试验中激光波长、束斑大小、脉冲能量、脉冲宽度等脉冲激光参数对阈值能量的影响。
Dark-clothed humans appear disgusted when they spot them from afar, and then, drawing nearer, suddenly beam smiles and benevolence.
身着深色服装的人们远远的看到它的时候表现了反胃，然后，慢慢接近，突然露出微笑和显示出爱心。
The laser beam then destroys the mosquito, burning it on the spot.
然后，激光的光束通过当场燃烧杀死蚊子。
Laser beam can be focused on a very tiny spot.
激光光束可以聚集到一个很小的小点上。
The choice form, should consider the spot construction term and the high degree of the hat beam, should still consider the economic costs with can acquire necessary material locally to the best.
支架形式的选择，应考虑现场施工条件与帽梁的高度还应考虑经济成本和尽量能就地取材。
The properties of turbulent effects including intensity fluctuation, beam spread, spot quiver, and pathlength fluctuation of laser propagating through a folded Path are discussed.
本文讨论激光在折叠光路上传输时强度起伏、光束扩展、光束抖动和光程长度起伏等湍流效应的性质。
The energy distribution of far field spot for annular aperture Gaussian beam is discussed and the fitting expression is given.
讨论环形孔径高斯光束的远场光斑能量分布，并给出拟合表达式。
The influences of thermal effects and the matching of the laser mode radius with the pump spot radius on the output power and beam quality are discussed.
讨论了激光晶体的热效应以及激光模半径与泵浦光斑半径匹配对激光输出功率和输出光束质量的影响。
When the beam is. focused to a small spot, its power density is. rais. d to produce sufficient heat to vaporize any material.
当光束在一个小点上聚焦时，其功率强度得以提高，并产生足够的热量来汽化任何材料。
When the beam is focused to a small spot, its power density is raised to produce sufficient heat to vaporize any material.
当光束在一个小点上聚焦时，其功率强度得以提高，并产生足够的热量来汽化任何材料。
The straight-edge diffraction of this parallel beam superposing on the light spot constitutes the so-called M-line.
这束平行光的直边衍射花纹与光斑本底叠加的结果在观察屏上形成为通常所称的M线。
It is shown that the ray trajectory depends strongly on the spot size and the inclination of the incident beam and the structure of the lens.
计算结果表明，光线轨迹主要由入射光束的光斑尺寸、倾角和透镜的结构决定。
The thermal effect of high-energy laser produced within the beam controller and its influence on laser far-field spot are analyzed with numerical calculation method.
采用数值计算方法分析了高能激光在光束控制器内部传输所产生的热效应及其对激光远场光斑的影响。
According to beam properties of the CO2 laser in the laboratory and light spot requirement for laser sintering, a set of laser beam homogenizing equipment is designed in this thesis.
针对实验室用大功率CO2激光的光束特性和烧结陶瓷实验时对光斑的特定要求，本研究从理论设计了一套激光均束装置。
After a study on this hypothesized spring beam, a method for analyzing warping torsion on spot-welded thin-walled box section beam has been presented.
通过对这种具有“假想弹簧”的半闭口截面构件的研究，提出了一种分析点焊箱型截面薄壁构件的翘曲扭转的新方法。
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