查询词典 laser

In the second chapter, the operating principle of solid-state laser is analyzed. Based on the model of four-level system and with the space-related rate equations, the space distribution of laser beam and pump beam, the threshold pump power, the output power, the slope efficiency, the input-output characteristic and the effect of space variables on the output character are studied. Also, the introcavity second harmonic generation theory is discussed.

第二章分析了固体激光器的工作原理，以四能级系统为模型，从与空间相关的速率方程出发，研究了泵浦激光和振荡激光的空间分布、阈值功率、输出功率与斜效率、LD端面泵浦固体激光器的输入输出特性及各空间变量对输出特性的影响，并讨论了腔内二次谐波产生理论。

Due to shrinkage of the beam waist of laser mode to match the pump beam, this laser can attain very high intensity in the pump region of gain medium and therefore most of its gain is depleted even by a standing wave.

由於雷射模会自动调整大小以符合泵浦光斑，雷射可以在被帮浦增益介质区域内达到很高的光强度，而使得大部分的增益被高强度的驻波消耗掉。

Use the mouse cursor to drag and drop the laser emitters around and the laser beam will be moves as well.

使用鼠标光标移动到拖放激光发射器和周围的激光束将举动，以及。

A heat mode of laser penetrating of thick steel plates has been investigated and the relations between laser power and beam size as well as welding speed have been obtained through energy balance.

通过能量平衡原理研究了厚钢板激光深熔焊接的热源模型，得出了激光功率与光斑大小、焊接速度等的关系，并讨论了激光光束质量。

Results: FFA indicated laser disk dropsy, bleeding, the strong fluorescence in laser disk blood capillary expansion and leakage of later period in optic nerve bruise (8 eyes). Retina dropsy in posterior polar and disappearance of concave reflection of central fovea of macula were shown in the eyeground in retinal concussion (22 eyes).

结果 视神经挫伤（8只眼），视盘水肿、出血、FFA示视盘毛细血管扩张及渗漏晚期呈强荧光；视网膜震荡（22只眼），眼底表现为后极部视网膜水肿，黄斑中心凹反射消失。

Cases were cuted by Nd:YAG laser called laser group, while the insertion group of 28 cases and the control group of 30 ones were each treated by different methods that eustachian tube insertion under nasal endoscope and eustachian tube blowing, and the effect of the three was evaluated.

其中26例施行Nd：YAG激光鼓膜造孔术治疗，为激光组；28例施行鼻内镜下咽鼓管置管术治疗，为置管组；30例施行传统的咽鼓管吹张术治疗，为对照组。

Printing and packing: Carton and color box design CAD software, carton color computerized proofing machines, plastic box proofing machines, laser cutter model plotters and laser cutting machine series products.

印刷包装业：纸箱、彩盒设计CAD软件、纸箱彩盒电脑打样机，胶盒打样机，激光刀模绘图机，还有激光切割机系列产品等。

Objective To study the technique of using Nd:YAG laser in treating after-cataract in outpatients and to prevent complications.Methods According to the thickness of membrane to choose laser power.The methods of capsulotomy were crossed,horizontal,vertital,can-opening or circular along papillary margin.

回顾分析我院门诊对74例98眼后发性白内障患者进行Nd：YAG激光后囊切开术，探讨根据膜的厚薄选择激光能量，分别采用&十&字切开（若后囊有张力者行张力线切开）、横形、纵形切开及环形或瞳孔缘开罐式切开方法。

Objective To study the technique of using Nd:YAG laser in treating after-cataract in outpatients and to prevent complications.Methods According to the thickness of membrane to choose laser power.The methods of capsulotomy were crossed,horizontal,vertital,can-opening or circular along papillary margin.Results The result was satisfactory.

目的 探讨采用Nd：YAG激光行后囊膜切开术治疗后发性白内障的方法及其并发症的防治方法回顾分析我院门诊对74例98眼后发性白内障患者进行Nd：YAG激光后囊切开术，探讨根据膜的厚薄选择激光能量，分别采用&十&字切开（若后囊有张力者行张力线切开）、横形、纵形切开及环形或瞳孔缘开罐式切开方法。

Finally, the law that laser reflection characteristics varies with the parameters of the transmitting laser beam and the cat eye optical lens, including aperture, focus and focal shift etc, is achieved.

得出了猫眼效应反射光特性随着入射激光参数以及猫眼光学镜头的基本参数——口径、焦距、离焦量变化的规律。

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。