激光

The doped concentration is one important parameter to laser output character and efficiency.

掺杂浓度是决定激光晶体激光输出性能和效率的一个重要的参数。

Secondly, the effect of Doppler broadening on inversionless optical gain is explored.

无粒子数反转激光研究的主要目的就是要得到用其它方法难于实现的短波长激光。

Tunnel series ----- convergence of equipment, laser-guided, bolt drawing instrument, laser theodolite, and plot device, cement die plate.

隧道仪器系列-----收敛计、激光导向仪、锚杆拉拔仪、激光经纬仪、求积仪、钢板水泥模。

On Earth-space paths, this beam scintillation index model is significant for the laser imaging, tracking, controlling and guiding, and laser satellite-Earth communication.

高斯波束的斜径闪烁指数模型的建立发展了湍流闪烁理论，将对地－空路径光通信、成像、遥感、激光制导和强激光系统的设计和应用具有重要的实际意义。

Metals on the absorption of laser light energy to the metal actually inside the transmission, once the incident laser photon to metal crystals, photon elastic collision with electrons, photons transfer their energy to the electronics, from the low-energy level of electronic transitions to the high-energy level.

金属对激光的吸收实际上也是光能向金属内的传输，一旦激光光子入射到金属晶体，光子就与电子发生弹性碰撞，光子将其能量传递给电子，使电子由原来的低能级跃迁到高能级。

Laser refabrication is a kind of advanced technology. It combines mechanical engineering, optics, electron, computer, sensor technology, material and other subjects with laser cladding.

激光再制造是一门高精尖的技术，它综合了激光熔覆、计算机辅助设计/计算机辅助制造、计算机数字控制、物理、化学、材料等学科领域的先进成果，解决了传统加工工艺中的许多难题。

The model of laser welding aluminum alloy was set up by means of finite element method. The changes of surface absorptivity with different laser power were simulated by ANSYS.

中文摘要：用有限元方法建立了铝合金激光焊接模型，采用ANSYS软件模拟了铝合金激光焊接过程中铝合金表面吸收率对焊接过程的影响。

Those are uniform heat source, double ellipsoidal heat source and the combined heat source.

系统地模拟和讨论了热源模型、试板尺寸、焊接速度和线能量对激光深熔焊残余应力的影响，阐述了激光深熔焊残余应力的形成与演化过程。

Produces plastic artificial leather embossing roller,mirror roller,hot roller,anilox roller,oil heated roller,peripheral drilling roller for paper making machine、steel to steel calendering roller and rubber roller. gy also produces metal embosser machine,three roller calendering machine,plastic extrusion assembling machine,filming machine,plastic extrusion plate production line,pvc plate production line,embossing devices etc.

公司拥有大型精密机床三十六台套，电镀流水线三条，德国激光原装雕刻机贰台，全套电脑制版、分色、激光照排系统，台湾、日本引进的皮纹辊雕刻设备，年产各类压花辊（塑料人革压花辊、镜面辊、热轧辊、网纹辊、油加热辊、造纸机械周边钻孔轧辊、钢对钢对轧辊、橡胶辊）13000余根。

Investigation on dynamics of the emission spectrum from the plasma produced by laser ablation of metal surface is one of most effective experimental methods to explore the laser induced plasma dynamics.

激光诱导等离子体的形成过程，以及电子密度和电子温度等主要描述等离子体特性参量的动力学特性，是激光等离子体研究的主要内容。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。