激光材料

As an important branch of Rapid Prototyping, Selective Laser Sintering is fallowed with great interest by the researchers in the field of manufacturing for it is widely usage in the sintering of metal polymer, ceramic and other powder.

作为快速成形技术的一个重要分支，选择性激光烧结SLS以其可加工材料广泛，不需工装等优点受到业内人士的广泛青睐。

ABSTRACT As an important branch of Rapid Prototyping, Selective Laser Sintering is fallowed with great interest by the researchers in the field of manufacturing for it is widely usage in the sintering of metal polymer, ceramic and other powder.

作为快速成形技术的一个重要分支，选择性激光烧结SLS以其可加工材料广泛，不需工装等优点受到业内人士的广泛青睐。。。。

Laser surface modification of copper-based powder metallurgy friction materials.

铜基粉末冶金摩擦材料激光表面改性处理。

They are laser beam power, pulse duration ,cutting velocity ,gas pressure.

结果表明：在激光器、聚焦系统和材料确定后，激光功率、脉宽、切割速度、气体压力是影响加工质量的主要因素。

This research used Hepato-pancreas of Ctenopharyngodon idellus as experimental material to study toxicological effect of olaquindox on liver cell and pancreas exocrine cell of Ctenopharyngodon idellus, using the method of histochemisiry, primary cell culture, and immunocytochemistry, and the cells were observed by TEM and LSCM.

本研究以草鱼肝胰脏(Hepato-pancreas)为试验材料，通过原代细胞培养，组织化学，免疫荧光细胞化学等实验方法，运用透射电子显微镜，激光共聚焦扫描显微镜等手段，观察三种不同浓度的喹乙醇对体外原代培养的草鱼肝细胞和胰腺外分泌部细胞的毒理影响。

Main production and operation of various types of colleges and universities, research institutes, laboratory equipment; as well as second-class, three types of medical equipment and medical hygiene materials and consumption only, medical ultrasonic instruments and related equipment; medical laser equipment; medical high-frequency equipment; physics treatment and rehabilitation equipment; clinical laboratory analytical instruments, etc.; operated by the Company Product variety is complete in specifications, which are sourced sufficient creditworthiness good company has a full range of modern information management.

主要生产和经营各类型高校，研究机构实验室设备；以及二类，三类医疗器械以及医用卫生材料及耗才，医用超声仪器及有关设备；医用激光仪器设备；医用高频仪器设备；物理治疗及康复设备；临床检验分析仪器等；本公司所经营的产品品种规格齐全，货源充足，资信度佳，公司拥有全方位的现代信息化管理。

The ivory white transparent board is made of imported PMMA material, which is cut by laser machine.

乳白色透光板采用进口透光率达90%的PMMA材料采用激光切割精制而成，使光线柔和，防眩光，使用户倍感舒适。

The transmission ratio exceeded 95% in near-infrared range, so the LCAS:Tm(superscript 3+) glasses can be used as high transmission optical glasses. The integral emission cross-sections outclassed 10^(-18)cm, the fluorescent ratios were higher and the radiative lifetimes were lenger, to the glasses are possible to be used as new laser function materials. The new strong and broad emissive bands for 400nm to 680nm emerge in the emission spectra of the another glasses samples.

高达95%以上近红外透过率表明，LCAS：Tm(上标 3+)玻璃可作为近红外波段高透过率光学玻璃；远大于10^(-18)cm的积分发射截面、较高的荧光分支比与能形成粒子数反转的荧光寿命表明，LCAS：Tm(上标 3+)玻璃可能成为一种新的激光功能材料。

Problems ,such as selection of the corresponding stuff, selection of the surge ponderance in the cavity and the influence of the minishing prism couplers on the mode of the ring laser cavity are discussed.

对采用棱镜耦合器的全反射棱镜式环形激光器的耦合输出特性进行了理论研究，导出了有&楔形&间隙的棱镜耦合器的反射系数和透射系数表达式，给出了反射率和透过率随&楔形&间隙高度变化的理论计算曲线，进而研究了有关材料选取、腔内振荡分量的选取及减小棱镜耦合器对环形激光腔内模式的影响等问题。

In this article,the laser speckle photography has been used for inspecting the thermal displacement s,which are generated in the weldments made from different metal materials in different temperature intervals.

本文用激光散斑照相法对不同金属材料焊接件在不同温度区间产生的热位移进行了实测，得到焊接部位的热位移随温度的升高而增大，其热应变及热应力亦随温度的升高而增大，且与理论中的分析相符。

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