激光

The laser marking algorithm of Multi-Grey image mostly research how to reappearance continuous tone image through laser marking.

多灰度图像的激光雕刻算法是研究如何通过激光雕刻来逼真再现具有连续色调的灰度图像。

With the development of laser techniques , 1.5μm high power continuous wave single-frequency laser has been used for scientific research and other fields.

随着激光技术的发展，1.5μm高功率连续单频激光光源被广泛应用于生产、科研等各个领域。

ABSTRACT Laser propulsion, which works on the counterforce generated during the interaction between high-power laser and propellant, is a n...

激光推进是利用高能激光与工质相互作用产生的反作用力推动飞行器前进的新概念推进技术。

Laser damage and defending technology of optoelectronic system is the focus of optoelectronic counterwork, which has become a part of the field.

激光对人眼、光学系统、光电系统的破坏日益受到重视，光电系统的激光破坏及其防护技术已成为光电对抗领域中重要组成部分，并成为该研究领域的焦点。

Scanning technique of CO2 laser imaging radar has become one of the key techniques used in cruise guide and control guide.

激光扫描技术是在巡航导弹制导中应用的CO2激光成像雷达的关键技术之一。

Cupper atom is formed by means of the decomposition of CuBr into Cu;++, and then recombination of Cu;++. Consequently the recombination coefficient is bigger and the delay time of laser pulse gets longer when the working temperature is lower.

由于工作物质铜原子是通过分解CuBr成为铜离子，再由铜离子复合成铜原子，故工作温度较低时，复合系数较大，造成激光脉冲的延时时间变长，而当工作温度较高时，复合系数变小，使激光脉冲提前。

The systemic experiments are done on the relationship between the output power and the cavity parameters such as the radius of the curved mirror, the reflectivity of the output mirror, the length of the two arms and so on.

本文为进一步将其做成新型、高效、低噪声再生放大器提供了必要的依据。标签激光技术再生放大飞秒激光大焦斑折叠腔 laser technique regenerative amplifier femtosecond laser large beam size folded cavity

The results of corneal topography, that of keratometer and cycloplegic retinoscopy in measuring astigmatism before refractive surgery were compared, and the measuring results of corneal topography and that of keratometer for 72 eyes after photorefractive keratectomy and 95 eyes after laser in situ keratomileusis were also compared.

采用计算机辅助的角膜地形图、角膜曲率计及散瞳验光三种测量散光的方法，对屈光不正患者360只眼进行检查，同时对准分子激光角膜切削术（photorefractive keratectomy，PRK）后72只眼和准分子激光原位角膜磨镶术（excimer laser in situ keratomileusis，LASIK）后95只眼的角膜散光用角膜地形图和角膜曲率计进行测量并比较。

Referring to the function of cylindrical lens and the principles of holographic optical elements, we make this holographic element, which can achieve the optical function of cylindrical lens, and have the advantage of large-scale, short focal length and well-distributed light energy, in order to meet the requirements of laser direct writing synthetic holograms.

实验结合激光直写合成全息拍摄时所需柱面透镜的功能，参考全息光学元件的制作原理来制作图像柱面压缩全息光学元件，实现柱面透镜的光学功能，并使元件具有大面积、短焦距、会聚光均匀分布的特点，满足激光直写合成全息拍摄对图像的需求。

The effects of cylindrical lens shape and the laser-fiber distance on relative coupling efficiency are also studied.

给出了一个计算980 nm泵浦激光二极管与柱形透镜光纤耦合角向容忍度的理论模型，并选择圆形的柱透镜光纤进行数值计算，得出了在水平和垂直方向上偏转加平移时的相对耦合效率及绕光纤轴向转动的相对耦合效率的数值计算结果并加以分析，同时也研究了光纤透镜的形状和激光二极管与光纤的间距对相对耦合效率的影响。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新