激光

Through indoor and outdoor experiments, it was proved that the designed 3-D intelligent measurement system for field landscape and Laser leveling aided decision-making support system can work stably. The 3-D intelligent measurement system can achieve an accuracy of 2cm in attitude measurement. The measurement efficiency is two times higher than that of using measure pole of imported equipments. The measurement system developed can provide basic decision-making support for laser controlled field leveling.

通过室内和室外试验表明：自主设计研发的智能三维地形测量系统和激光平地辅助决策支持系统可以正常稳定工作；智能三维地形测量系统高程测量的误差小于2cm，工作效率同比同类设备高2倍多；激光平地辅助决策支持系统能为激光平地作业提供必要的决策支持。

Rotating laser ; laser levellers ; laser for autocontrol.

激光扫平仪；激光平地机；激光自动控制

Laser-based metrology and grating-based metrology are two main ultra-precision tools of dimension measurement. However, very few research work has been done on grating-based nanometrology compared with laser-based nanometrology till now because many people, including some grating researchers and specialists, hold the idea that the accuracy of grating-based measurement is lower than the laser's and can only reach micrometre or sub-micrometre level. They consider that it is unfeasible to get nanometer-scale accuracy using grating-based sensors.

激光技术和光栅技术是毫米级以上量程的精密几何量测量的两种最主要手段，目前，用激光进行纳米测量的研究已经很多，但光栅纳米测量技术的研究却很少；很多人，包括很多光栅研究者和测量专家，都认为，光栅测量的精度不如激光，其精度还只是停留在微米量级上，用光栅来进行更高精度的测量以至纳米测量是难以实现的。

Bending angle about material augments along with laser power and laser light spot diameter augment, but bending angle about material minishes along with laser scan rate and material hardness augment.

随着激光功率和激光光斑直径的增加板材弯曲角度增大，但随着激光扫描速度和板材厚度的增加弯曲角度减小。

Based on Stuart et al.'s electron density evolution equation, the electron density evolution process in fused silica film irradiated by short-pulse laser for τ∈[0.015] ps were studied by means of numerical method. The effects of initial electron density N and laser pulse width τ on laser threshold intensity I and damage threshold fluence. F were analyzed respectively.

基于STUART等人的电子密度演化方程，运用数值模拟方法，研究了脉宽为τ∈[0.01， 5]ps范围内单脉冲激光作用下熔融石英薄膜中电子密度演化过程；讨论了初始电子密度、激光脉冲宽度对阈值功率密度和阈值能量的影响；分析了初始电子密度、激光脉冲宽度对多光子离化及雪崩离化的影响。

The dissertation is concentrating on the topic of a high power, tunable, millimeter wave free electron laser. The tunable ability of the mm wave FEL is studied. FEL powers are improved by novel variable parameter wigglers. A high brightness electron beam is achieved for FEL. These technologies are very important for realization of high power compact free electron lasers.

本博士论文围绕高功率可调谐毫米波自由电子激光器的研究主题，研究毫米波自由电子激光的调谐特性，用新型磁场逐渐增强的摇摆器等手段提高自由电子激光的效率，研究体积小的高亮度电子束源用于自由电子激光，为研制新一代小型化高功率自由电子激光器提供关键技术。

The comprehensive test technology for laser peak power parameter is investigated based on the characteristics of wavelength, power, and pulse width of pulse laser transmitted from laser transmitting sets operating in several common wavebands.

针对几种常见波段脉冲激光发射机所发出的脉冲激光波长、功率和宽度等特点，进行了激光峰值功率参数的综合测试技术研究。

Products Victoria Green laser printing plant is part of Garbo Jinjiang Co., Ltd., in 2004 from the United States introduced a complete set of laser equipment and the employment of professional and technical personnel, professional production of laser heat transfer, sewing, leather art, such as laser engraving products, production could reach more than 20,000 designs.

青利激光厂隶属于晋江嘉宝印花有限公司，于2004年从美国引进全套的激光设备并聘用专业技术人员，专业生产镭射烫画、布艺、皮艺等激光雕刻类产品，日产量可达到两万多个图案。

The CopperHead Laser Screed works by using the same basic laser control system as the "big" laser screeds.

熨平的铜斑蛇激光工程作为&大&激光找平相同的基本激光控制系统。

To achieve compact all-solid-state laser's operation, a plane-parallel cavity was employed with two mirrors separated by 1 cm, and obtained the fundamental-wave laser with central wavelength at 1044 nm. The maximal output power of 1.38 W was obtained with an absorbed power of 4.22 W, which corresponded to slope efficiency of 54%.

为了实现紧凑的新型全固态激光器的激光运转，设计了一个平平谐振腔，两个镜子的分开距离仅为1 cm，在这种腔结构下，得到了中心波长为1044 nm的基频激光输出，当吸收抽运功率为4.22 W时，基频激光的最大输出功率为1.38 W，相应功率曲线最大斜效率为54%。

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