查询词典 laser

In this paper, the advances in research of laser mutation breeding mechanism was expounded and the application and achievements in breeding of agriculture, pasturage, farrier and industry microorganism of laser mutation were introduced.

阐述了激光诱变育种机理的研究进展，介绍了激光诱变在农作物、畜牧兽医、工业微生物育种上的应用及取得的成果，并介绍了激光诱变育种的一般操作过程，最后展望了激光诱变育种今后的研究前景。

Even-level ladder system has been analyzed for population transfer by counterintuitive frequency-chirped laser pulse, in which intermediate states are strongly coupled by dressing laser field.

利用"反直觉"频率啁啾激光脉冲分析了偶能级ladder系统的布局数迁移，其中在缀饰激光场作用下N-2个中间态进行耦合。

The effects of steel plate width, steel plate thickness, laser power, laser scanning velocity on final bending angle were studied.

研究了板材厚度、板材宽度、激光功率和激光扫描速度对激光弯曲成形最终弯曲角度的影响。

Because of the large diameter drum and photoptic finy laser points that are provided by color copier copy level and business card printing and membership card making it difficult to distinguish between workers'original and the principle of digital copiers using electronic scanning with the laser beam to the drum to have a very advanced image processing features.

由于采用大直径感光鼓及微细激光点，这些复印机所提供的彩色复印水平与制卡和会员卡制作的原件难以区分；其数字式复印机采用电子原理扫描文件，并用激光光束把图像显示到鼓上，从而具备了非常先进的图像处理功能。

The reaction mechanism of HNO2 and C6H5Br in aquepus solution with the presence of O2 or absence of O2 is studied by laser flash photolysis transient absorption spectrum technique under irradiation at 355nm.The intermediate and final products have been analyzed after the irradiation of laser.The photolysis mechanism of C6H5Br…OH has been discussed.

另外，采用激光闪光光解瞬态吸收光谱技术，从微观反应机理角度分析了无氧或氧气饱和条件下HNO2与C6H5Br的光化学反应，以及溶液经激光照射后产物的生成情况，并着重探讨了反应中间产物C6H5Br…OH的微观反应机理，得到了一些重要的动力学参数。

When hit with a laser they can fluoresce for hours afterwards, thanks to defects in the diamond that absorb the laser energy and emit light of their own at a different wavelength.

FND用激光照射后在几个小时内可发出荧光，其原因是钻石上的瑕疵吸收了激光能量并以不同的波长发射自身的光线。

5Calibration of the laser optical axis of the basic principles and methods isdiscussed, laser target designator axis calibration device is designed, the key technologythat a large caliber, long focal distance from the axis parabolic reflector design is solved,and the cross target line which can be used for a wide variety of observation devices isdesigned, the final calibration accuracy is 0.05mrad.

5论述了激光光轴校正的基本原理和方法，设计了激光目标指示器光轴校正装置，解决了其中的关键技术：大口径、长焦距离轴抛物面反射镜的设计问题，并设计了可用于多种观瞄装置的十字靶标，最终的校正精度达0.05mrad。

The assembly method of the invention has the main principles that a semiconductor laser, an optical coupled apparatus and a fiber head are orderly arranged, and the optical axes of the semiconductor laser, the optical coupled apparatus and the fiber head are arranged in a same straight line; the focal plane of an output beam which is focused on the fiber head is changed through utilizing and adjusting an adjusting device which can cause a beam to deviate; the sensitivity of the assembly adjustment of the adjusting device in the course of fixing is reduced.

本发明的方法的主要原理是将半导体激光器、光学耦合器件、光纤头依次排列，并使它们光轴在同一直线上，然后通过利用一使光束发生偏移的调节器件，通过调节该调节改变聚焦于光纤头的输出光束的焦平面，降低调节器件装配调节的固定时的敏感性。

If the densely placed laser lights created are considered an actual physical space, then the smoke produced by the fogger has destroyed the visual atmosphere against what is created by the densely placed laser lights.

如果把密密麻麻的雷射光束视为实际的实体空间，那麼，烟雾产生器所制造出来的烟雾便打破了那由密密麻麻的雷射光束所产生的视觉气氛。

We also measured the dependence of fragmental ratio of each ions on laser intensity and laser power index of total ions.

实验还测得了各产物离子信号分支比对激光强度的依赖性和总离子信号的光强指数。

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。