查询词典 laser

Results The efficiency of the laser group was 96%, while that of NaF group was 76% The laser irradiation could decrease hypersensitive dentine. There was marked difference between two groups.

结果 用半导体激光治疗的患牙其敏感症状立即降低，即刻有效率达96%；而用氟化钠治疗的患牙，即刻有效率为76%，两者有显著性差异(P.01)。

According to the optical spectrum of Febry-Perot laser, the performance of the depolarizer for multiple longitudinal mode laser is analyzed in frequency domain.

根据Febry-Perot激光器输出光谱的特点，从频域的角度分析用于多纵模激光器的晶体型消偏器的性能。

The error sources, factors of effect on accuracy and the controllable error range of airborne laser designator are discussed, through the components of airborne laser designator in this paper.

文中通过机载激光指示器的组成分析了它的误差源、影响系统精度的因素以及其可控制的误差范围。

In the School, there is a high-level experiment research center furnished with the atomic absorption spectrophotometer , comprehensive thermal analyzer, in-situ high temperature and high resolution SEM, in-situ high temperature XRD, RAMAN, ICP, FTIR, AFM, CHN, laser particle analyzer, GPC, dynamic mechanical analyzer, laser flash thermal conductivity determinator , high temperature graphite furnace , PECVD, magnetron sputtering furnace, etc.

学院建设具有高水平的实验研究中心，拥有ICP、DSC、高温原位HRSEM、、高温原位XRD、RAMAN、激光粒度仪、GPC、CHN、DMA、孔径与比表面测定仪、激光闪光导热率测定仪、高温石墨炉、真空热压炉、PECVD、磁控溅射仪等仪器设备。

In this paper,the form of laser screen and the choice of photosensitive element,laser device, data acquiring board are introduced.

本文介绍激光光幕的形成，光敏元件、半导体激光器和数据采集板的选择等。

It uses a macro laser sensor based on optical-electronic triangulation method to get diametric size, and uses grating linear transducer and scanning sensor composed of laser diode and photo-diode to get axial size of the work-piece to be measured.

它利用基于光学三角法的激光位移传感器获得轴类零件的径向尺寸，利用半导体激光器与光电二极管组成的扫描式发讯传感器和光栅传感器的组合获得轴向尺寸。

Along with the melt ejection, laser dicing technologies, sub-surface laser dicing technologies have been introduced.

伴随着熔融物的喷出，激光划片技术，引入了内部激光划片技术。

Beijing Institute of Technology, Beijing 100081,ChinaIn order to get the high output power, a RF excited diffusively cooled all-metal slab waveguide CO2 laser was reported, in which gas discharge region was constructed by two aluminum side walls and aluminum electrodes. The region dimension was 2 mm height×20 mm width×386 mm length, and the gas composition was CO2:N2:He:Xe=1:1:3:0.26. This technique replaced the old ceramic and metal sandwich waveguide technique.The optimum out power 127 W was achieved from the RF excited diffusively cooled all-metal slab waveguide CO2 laser with the longitudinal voltage uniformity distribution technique and scaling area technique. The electro-optic conversion efficiency was about 14%.

为了获得较高的激光输出功率，介绍了射频激励扩散冷却全金属板条波导CO2激光器，放电区域由左右两个铝合金壁和上下两个铝合金电极构成，放电区域高2 mm，宽20 mm，长386 mm，工作气体混合比CO2：N2：He：Xe=1：1：3：0.26，该技术代替了过去的金属陶瓷结构，结合纵向电压均匀分布技术和面增比技术，获得了127 W的激光输出功率，光电转换效率高达14%。

Stabilized wavelength of a diode laser on 3-4 transition of I ---I , the diode laser was used to probe SSG distribution of COIL by 1D scanning stage or 2D rotating mirror.

一维扫描平台沿气流方向测得的结果显示，增益在气流方向变化平缓，增益区较长。

The ability to have a direct modulation is different from other laser diode laser an important characteristic.

4具有直接调制的能力是半导体激光器有别于其它激光器的一个重要特点。

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。