激光

Based on the rapid development of Close-range photogrammetrical and laser-scanning technology, this paper presents some demerits of traditional Close-range photogrammetry, demands for the real-time photogrammetry at present, as well as the personal investigation in the theories of laser-scanning and the technologies about step-by-step generator and manipulating console.

本文针对近景摄影测量和激光扫描技术的发展，分析了传统近景摄影测量存在的问题和当前对实时摄影测量的需求，深入地研究了三维激光扫描的基本原理和实现其基本原理的关键技术。

A set of high explosive pumped photolytic iodine laser system was built and a steady laser output of approximate 100 J was obtained in experiments.

成功研制了高能炸药抽运光解碘激光器系统，实现了爆炸激光器装置的稳定激光输出，并获得了近百焦耳的激光输出能量。

The dominating mechanism of the Cr,Tm,Ho:YAG laser lithotripsy is photothermic effect.

激光热效应是钬激光治疗输尿管结石的主要机理。

An effects of physiological stimulation on astaxanthin producer Haematococcus pluvialis by He-Ne Laser and semiconducter Laser was studied.

本文研究了He-Ne 激光和半导体激光对生产虾青素的雨生红球藻的生理刺激作用。

Stable optical trapping of human red blood cells, Haematococcus pluvialis Flotow cells and Xanthophyllomyces dendrorhous cells was achieved using this system.

三比较了飞秒激光光镊和连续激光光镊的捕获能力；实验发现，较长时间捕获细胞后，两种光镊对细胞表现出不同的捕获能力。

Experiment result indicates that laser power density,welding speed,pulse frequency and pulse width are the key factors of pulse laser welding and that the polishment,close touch of butt joint faces have an important effect on the air vents number in welding line and the mechanical performance of welding line.

实验结果表明：对焊面的打磨、抛光和紧密接触对防止焊缝中产生过多的气孔和提高焊缝的机械性能有重要作用；激光功率密度、焊接速度、脉冲宽度和脉冲频率四个参数是实现脉冲激光焊接的关键因素。

Laser hole boring effect due to the large ponderomotive force is observed on the surface which is verticle to the magnetic field.

在垂直于激光磁场的平面上，观察到激光有质动力向两侧推动粒子产生钻孔效应。

Ponderomotive force of laser beam propagating in plasma could become stronger as the intension of laser beam strengthening , and in fluid mechanics ponderomotive force is related to implicate term, so implicate term could become stronger as laser beam's strengthening and couldn't be ignored.

当在等离子体中传播的激光脉冲达到一定强度时，有质动力会变得比较强。而在流体力学方程中有质动力一项与牵连项相关。因此当激光达到一定强度的时候，流体方程中的牵连项也会变得比较强，不可以被忽略。

The electrons in the pre-plasma can be trapped and accelerated by the ponderomotive force of propagating laser pulse, and escape from the pulse as the latter reflects from the target surface, preserving high energy.

研究表明，通过有质动力加速过程，预等离子体中的电子可以得到强烈的加速，并通过进入固体靶而摆脱激光脉冲的束缚，这个加速过程比激光直接与固体靶相互作用中的电子加速过程要有效得多。

The extent of the pulpal injury seemes to depend more on the exposure time than on the output power.

激光对牙髓组织的损伤程度更多取决于激光照射时间，而非输出功率。

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