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Based on the preliminary study on LSF, this paper studied characteristics of laser shock forming in detail, analyzed primary factors which affect the deformation of sheet metal, measured distribution of residual stress in deformed sheet metal, and simulated the process of laser shock forming.

本文在激光冲击成形初步研究的基础上，系统研究了激光冲击下板料的变形特性、影响板料变形大小的主要因素、变形区残余应力的分布，最后利用有限元分析软件对激光冲击成形过程进行了模拟，对相关理论参数进行了修正。

The latest laser cutting technologies have helped reduce this, but when a specific application demands a smooth surface wall, it is possible to electropolish or even electroplate laser-cut stencil apertures following the cutting procedure.

最近的激光技术已经可以减少条纹的产生。但是，当特定的应用需要光滑的孔面，激光切割孔在切割之后可能进行电抛光或电镀。

A cluster of metal steam above welding pool and its obvious effect on reducing the laser energy input was found by real time image sensing. Side-blowing shield gas could remove the metal steam, and the effective power of the laser was elevated.

通过实时的图像采集，观察到熔池表面存在的团状金属蒸气，其对激光能量的输入造成较大影响，通过侧吹气体可以将其去除，提高激光有效功率。

In this paper, the construction of simple nitrogen laser is herebyintroduced; The relationship between distance of spark gap and discharge voltage, outputenergy of the nitrogen laser and discharge voltage, have been studied experimentally.

介绍了一种简易氮分子激光器的构造；实验研究了火花隙距离与放电电压的关系和激光器输出能量与放电电压的关系。

Exhibition hall is divided into four, nine galleries, one of electric and magnetic layer for the area, power and machinery area, math section, the universe and Space Pavilion, set up a high-voltage discharge, electric magnetic Gallery, bowls, a typical mechanical transmission, three-dimensional coordinates and other exhibits; the second floor for the sound and light booth, Applied Technology Pavilion, set up a light display, three-dimensional holographic images, sound simulation, laser laser, simulated driving and other exhibits; three for the Life and Health Pavilion, set up a false impression cylinder, fitness tests, brain and facial features, body systems, such as exhibits; underground floor for temporary exhibitions; in the Office of the Hebei Academy of Sciences set up a pavilion style.

展厅共分四层，九个展区，其中一层为电与磁展区、力与机械展区、数学展区、宇宙与航天展区，设置了高压放电、磁电廊、滚球、典型机械传动、三维坐标等展品；二层为声与光展区、应用技术展区，设置了光路展示、全息立体影像、声音模拟、激光内雕、模拟驾驶等展品；三层为生命与健康展区，设置了错觉滚筒、体能测试、大脑与五官、身体各系统等展品；地下一层为临时展览；中厅设置了河北院士风采展区。

The laser produced plasma channel may be a promising means to produce an efficient compact soft X ray laser.

短脉冲强激光和气体靶相互作用可产生等离子体波导。

The experimental results showed that in laser engineering the small-diameter laser rod could be used to improve the beam quality of high-power lasers.

结果表明，通过使用小口径激光棒提高激光器输出光束质量工程上可行。

Result:Irradiation on injured sciatic nerve with power output of 15mW of diode laser could promote the nerve regeneration.At sixth and eighth week the motor nerve conduction velocity was significantly faster than control group.Any way,there was not any significantly different between 5mW,10mW laser groups and control group.

结果：15mW的半导体激光照射可促进神经纤维的再生过程，第6、8周时激光组的运动神经传导速度明显高于对照组(P＜0.01)，而5mW和10mW半导体激光照射组与对照组比较无明显差异。

This article has researched the method of laser alarm signal receive and the processing, and has discussed the software and hardware design and the principle of work of laser pre warning system in detail.

本文对激光告警信号接收与处理的方法进行了研究，并对激光告警系统的软硬件设计及工作原理进行了详细的论述。

In this paper,the surface roughness and residual stress of 1Cr11Ni2W2MoV stainless steel after laser shock peening and shot peening were tested and analyzed.The results show that laser shock peening samples have better surface quality and larger residual stress than shot peening samples.

对不锈钢材料1Cr11Ni2W2MoV进行了激光冲击强化和喷丸强化后表面粗糙度和残余应力测试分析，与喷丸相比，激光冲击强化对试件表面形貌和表面粗糙度的影响更小，产生的残余压应力更大。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。