查询词典 laser

That's the first difference between a beam of ordinary light and a laser beam.

这是第一个不同点在普通光束和镭射光束之间。

A beam of light generated by a laser .

由激光器发出的一束光。

The intensity of laser signal incident straightly on the surface of photoelectric detector of the warning apparatus was calculated under different atmospheric visibilities in this paper. Both the target reflection and the atmospheric dispersion were considered also. The sensitivity of the vehicular laser warning device was discussed to provide a guideline for the development and design of the device.

分析计算了激光在大气传输中在不同能见度下直接入射到告警接收机光电探测器表面上的信号辐射度，以及目标溅射和大气散射情形下的激光信号辐射度，对车载激光告警器灵敏度指标的确定进行了论证，为系统设计和研制提供了依据。

It consists of the EpSON EpL-C8200 color laser business card printing machine EpSON EpL-N4000 + laser business card printing machines and pROSpECTS Wellformed digital notes business card printing and membership card production system.

它由EpSON EpL-C8200彩色激光制卡机EpSON EpL-N4000+激光制卡机和pROSpECTS Wellformed数码票券制卡和会员卡制作系统组成。

An ultrashort pulsed-laser beam is composed of a series of monochromatic continuous waves. According to Parseval theorem, the time-averaged intensity can be calculated by the sum of the intensity of these monochromatic continuous waves. Then we derive an equation to study Talbot effect of a grating illuminated by an ultrashort pulsed-laser beam.

我们采用了频谱分析法，即把超短脉冲光波看成是由一系列的单色光波组成，根据Parseval定理，光栅Fresnel衍射的平均光强由一系列的单色光波的衍射光强之和而求得，这样我们给出了一种分析光栅在超短脉冲光波照射下泰伯效应特性的方法。

Studies on circular polarization fiber laser gyroA circular polarization fiber laser gyro is proposed.

圆偏振光光纤激光陀螺的研究提出一种圆偏振态工作的光纤激光陀螺。

This paper introduces the studies of the ultra-short Thomson scattering X-ray source at the accelerator laboratory of Tsinghua University in recent years. Properties such as the photon yield,the pulse length and time jitter of the produced photon pulse were predicted theoretically from the parameters of the electron bunch and the laser pulse,and the scattering angle. Preliminary experiments were successfully carried out with a 16 MeV backward-traveling-wave accelerator and the ns-Q switched laser provided by China Academy of Engineering Physics. This paper also introduces the 1.6-cell electron gun that was fabricated on site and the experiment with high RF power including the measurement of the electron bunche parameters. Based on these,we have designed an X-ray source,which is now under construction.

介绍了清华大学加速器实验室近年来关于汤姆逊散射超短X射线源的研究工作；研究了在任意散射角度下电子束参数和激光束参数对散射光子参数的影响，给出了散射光子的参数如光子产额、脉冲长度、时间抖动等与电子束参数、激光束参数和散射角度的关系；利用实验室已有的16 MeV反波行波加速器与中国工程物理研究院激光聚变研究中心提供的ns调Q激光搭建了汤姆逊散射初步实验平台并开展了实验研究；加工了1.6-cell光阴极微波电子枪，搭建了高功率实验平台，对产生的电子束参数进行了初步测量；对汤姆逊散射超短X射线源进行了设计并开展了相关的平台建设工作，对产生的X射线脉冲参数进行了模拟。

The laser optically pumped cesium magnetometer is a magnetic measurement instrument that is used to measure the absolute total intensity magnetic field, it is based on that the energy levels of cesium atoms in a magnetic field produces Zeeman effect and makes use of the principle that laser pumping and the RF magnetic field produce magneto-optical double resonance to make.

激光铯光泵磁力仪是一种用来测量磁场总强度的绝对磁测仪器，它是以铯原子的能级在磁场中产生塞曼效应为基础，利用激光泵浦和射频磁场产生光磁双共振的原理而制成的，激光泵浦铯原子是磁力仪结构的核心部分。

Based on the research of the Zeeman effect of 633 nm He-Ne laser, we have observed and measured the beat frequency tuning curve of 543nm He-Ne laser under different magnetic field orientations and intensities.

参照633nmHe－Ne激光器的塞曼效应，对543nm He－Ne激光器在不同方向和强度磁场下的拍频调谐特性进行了观测，发现在横向磁场作用下激光器的频差过低而且调谐曲线不规则，而纵向磁场下的调谐曲线较好，所以决定采用纵向塞曼激光器进行稳频。

The performances of Kodok 9740, Kodak 9860, pentame-thylidyne dye and two new dyes HIE 1301, and HIR 1302 are compared by the intensity and time-resolution properties of signal waves, and the output characteristics of the laser by using these dyes in an active-passive mode-looked Nd3+:YAG laser are reported.

本文报道了几种可用于钕激光锁模的快速饱和吸收体中ps光脉冲的简并四波混频，利用信号光波的强度和时间分辩特性，比较了Kodak 9740，9860、五甲川和两种新染料HIR1301，HIR1302的性能，首次给出了新染料的弛豫时间，并比较了这些染料直接用于主被动锁模激光器时输出光脉冲的性能。

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。