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。
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 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。
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 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。
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。
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。
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。
A dynamic channel reserve strategy for LEO communication system with spot-beam is proposed.
针对具有点波束的低轨卫星移动通信系统，提出了一种信道动态预留策略。
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。
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。
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。
Movement of the interference stripes are dealt with by means of software subdivision, after that offsets of the spot to the laser beam is gained.
采用软件细分的方法，处理干涉条纹的移动量，得到被测点相对于准直光束的偏移量。
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。
The spot size of laser and its beam waist is the important parameter for assessing the performance of lasers.
激光光斑尺寸和激光束腰光斑尺寸是衡量激光器性能的重要参数。
Based on minimum spot condition, a method for laser beam quality measurement is proposed.
基于最小束斑条件，提出一种光束质量的测试方法。
Good beam quality, close to the basement membrane, small spot diameter, perfect for ultra-fine marking.
光束质量好，接近基膜，光斑直径小，完美适用于超精细标记。
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。
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。
The simulation results indicate that the adaptive beam expander can be used to control the focusing length and spot size.
数值模拟结果表明，自适应扩束系统能够实现对“飞行光束”聚焦特性亦即焦点位置与焦斑大小的控制。
The laser beam passing through the focusing systems gets an facula, which consists of main spot and sidelobe on the focus plane.
由于光的衍射作用，使通过聚焦系统的激光束入射到特定靶面成一光斑（主光斑） ，而在主光斑以外还有次级光斑圈（旁瓣）。
It is very important to measure the laser spot energy distribution in the field for describing the laser beam performances and evaluating the lasers and operational performances.
激光远场光斑测量对描述激光束的远场性能，评价激光器以及系统的实际工作性能具有重要意义。
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