激光材料

Laser shaping technology on hard and brickle inorganic materials is one of the most promising fields.

硬脆性无机材料的激光成形加工是激光加工技术最有前途的领域之一。

The company has the top advanced PQ35 plat and pre-technology. Among them, the product pack adopts much transport technology and mode of production, such as EHB, auto-operated electric car, slippery skiing that can carry out different types of assembly, new door's cementation technics and so on. The products' paint-pack use the top-grade e-coating, super filter wash, immerse to wash, top-advanced PVC series of material, machinal hand, adding cup type auto static electricity to spray method. The product's welding pack use the manufacturing technology for car body, such as the top-advanced Schottplatt laser check, laser weld, more-square welding, intermediate frequency's welding three-piece plat. The product's stamping use high-speed mechinal arm auto product line, KUKA dismantling robot, optics shoot slab stock orientation, and 800-tun coordinated auto pressure machines.

大众公司拥有着当今世界最先进的 PQ35平台和一大批世界先进的前沿技术，其中产品的总装配采用了可实现不同车型共线装配的滑橇、 EHB 、自动运行的电动小车、全新的车门密封条粘接工艺等输送技术与柔性化生产方式；产品涂装采用了世界一流的电泳、超滤液冲洗、浸洗、沥水和世界最先进的 PVC 系列材料及机械手、加杯式自动静电喷涂方式；产品焊装采用了目前世界最为先进的 Schottplatt 激光检测、激光焊接、大面积机器人焊接、中频焊接三层板、冲联等车身制造技术；产品的冲压采用了高速机械臂全自动生产线、 KUKA 拆垛机器人、光学摄像板料对中定位、及800吨三坐标式多工位自动压力机等。

It's believed that the future development of oxyfluoride glass ceramics will focus on the realization of unitization of materials, and the realization of high efficient short wavelength laser output, particularly in blue-green laser output.

认为氧氟微晶玻璃今后的发展重点将是实现材料的器件化，并实现高效率的短波长激光输出，尤其是蓝绿激光输出。

In current study, the laser shock processing technique of high energy and short pulse duration is adopted. The substructural transformation characteristics and mechanisms of 2Cr17Mn15Ni2N austenitic stainless steel, subjected to ultra-high strain-rate and impact stress in excess of dynamic yield strength of the target, are investigated by scanning electron microscope, X-ray diffraction and transmission electron microscope technology.

采用高能短脉宽激光冲击加载技术，利用扫描电子显微镜，X射线衍射和透射电子显微镜等手段，研究了在激光诱导的超高应变率和高于材料动态屈服强度冲击加载条件下，2Cr17Mn15Ni2N奥氏体不锈钢表面亚结构的转变特征和机制。

Passive; unactive; passivityregain the initiative;land oneself in a passive position; be thrown into passivity

开关 passive Qswitch 利用光学材料在某一激光波长的透过率取决于激光强度的现象来实现调Q的装置。

Resently, by considering the heat diffusion, rigorous thermal and mechanical boundary condition, arbitrary laser intensity, and volumetrical heating, someone already made a real picture of reaction of laser with material and the theory comparable to practice.

近年来，已有人通过考虑热扩散、准确的热和机械边界条件、随时间任意变化的激光加热强度以及体吸收等，使得较真实的激光与材料相互作用图象得以展现，理论与实验结果的比较成为可能。

The intensity ratio of TO and LO inMCT was observed to be different. Such difference was explained in terms of the different Ramangeometry arrangement.〓. The laser-induced micro-photoluminescence in the range of 1000～5000〓(1.34eV～1.83eV) was found for the first time in LPE MCT epilayer. The center of photoluminescence wasat 2750〓 or 1.62eV and the FWHM of luminescence was 2000〓 or 0.25eV. We assume thatthe photoluminescence is due to recombination of electron from an anion vacancy resonance levelto the top of valance. In addition, new Raman shift was observed at 750〓 in LPE MCTepitaxial film.〓. The laser-induced micro-photoluminescence with quasi-periodic structure was observed forthe first time at room temperature in one of MOVPE MCT epitaxial film samples. The range offluorescence was from 1.46eV to 2.21eV, i.e., 1.73eV above the conduction band edge.

2首次在LPE生长的碲镉汞外延薄膜的显微Raman谱中，在1000～5000〓范围发现了激光激发显微荧光，该荧光的发光范围换算为电子伏特标度为1.34eV～1.83eV，荧光的发光中心大约位于2750〓，即1.62eV，发光的半峰高宽约为2000〓或0.25eV；指出该显微荧光来源于碲镉汞薄膜中的阴性离子空位共振能级的激光激发发光；观察到了碲镉汞外延薄膜中一个新的Raman散射峰，位于750〓位置； 3首次在一块用MOVPE方法生长的〓Te外延薄膜的显微Raman谱中，发现了1.46eV至2.21eV范围并伴随有周期结构的显微荧光峰，该发光峰对应的能带中心位于〓Te材料导带底上方1.73eV，通过研究得出样品在1.46eV至2.21eV范围的显微荧光峰是由于改进 MOCVD 生长工艺，提高了碲镉汞外延薄膜的结构质量所致；通过分析指出该显微荧光来源于外延层中的阴性离子空位的共振能级发光。

It is concluded that the material removal of the process depends mainly on the ablated crater which is made of single pulse of laser and is not influenced by the parameters of the motion of workpiece.

因此，激光烧蚀成形三维表面时主要取决于单个激光脉冲烧蚀材料而形成的凹坑，每个脉冲的作用深度基本上不受切削运动参数的影响。

In this paper, by using theoretical analysis and experiment, the effect of the surface roughness of the laser shock peened metals on the dispersion of laser-generated surface acoustic waves is studied.

本文从理论和实验方面研究了激光冲击硬化材料表面粗糙度对激光声表面波色散的影响。

The test of friction and wear resistance for QT500-7 nodular cast iron strengthened by laser,i.

对拉丝机导轮材料QT500-7球墨铸铁激光强化后在屏显式摩擦磨损试验机上进行了摩擦磨损试验，并从激光强化后的组织变化分析了性能提高的原因。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。