查询词典 high power

The high efficiency and high power semiconductor laser with multi-active regions which are cascaded by reverse biased tunnel junction has a higher inner quantum efficiency which can larger than 1, so that it can output higher optical power at the same injected current compared with the normal lasers, meanwhile, it can be designed to large coupled optical cavity, so it will increase the limit of the electro-thermal destroy and the COD.

通过反向偏置隧道结将多个有源区级联起来的多有源区耦合大光腔高效大功率半导体激光器从理论上解决了传统激光器存在的问题，由于其内量子效率大于1，可以在相同电流下输出高的光功率，且可以制成耦合大光腔结构，增大了光腔面积，因此相对于传统激光器而言，其电热烧毁和COD水平都会提高。

Liyang Hsin Da Precision Electronics Corporation is a Taiwan enterprise specialized in designing, developing and manufacturing relays. It mainly produces over 50 series of products in 6 categories, including communication relay, mini high-power relay, high-power relay, automobile relay, electron control switch and plug. In 2006, its total sales reached 46 million yuan.

溧阳欣大精密电子有限公司是专业从事继电器的设计、开发和生产的台资企业，主要生产通讯继电器、小型大功率继电器、大功率继电器、汽车继电器、电子控制开关、插座等6大类50多个系列产品。2006年产品销售收入4600万元。

With the development of high performance thulium PM materials, microelectronics technology, modern intelligent control technology and power electronics technology, especially high-power semiconductor devices, PM BLDCM has been developed more and more rapidly and applied extensively, which gradually replaced other types of motors in many occasions.

随着高性能稀土永磁材料、微电子技术、现代智能控制技术和电力电子技术特别是大功率半导体器件的发展，永磁无刷直流电机得到了越来越迅速的发展和广泛的应用，在许多场合开始逐步取代其它种类的电机。

Multi-phase PMSM is usually used in situation of high reliability, military and high power transformation, such as circulation water motor in nuclear power station and warship propulsion system etc..

多相永磁同步电动机的应用侧重于军事以及高可靠性、大功率的场合，如：核电站循环水电动机、舰船推进系统等。

Cavitation is the most distinct characteristic of the high-power low-frequency ultrasonic fields, and it is also regarded as the primary mechanism of ultrasonic cleaning. Nevertheless, the measurement question of the high-power low-frequency ultrasonic fields hasn't been resolved well, because of the incomplete cavitation theory and the complexity of cavitation fields. The universal acceptant standard measurement hasn't been found up to the present so that it is difficult to judge of the performance of ultrasonic cleaning machines scientifically.

大功率低频超声场最鲜明的特点就是空化，而空化也被认为是超声清洗的主要物理机制，但由于其理论研究尚不完善，加之空化声场的复杂性，使得至今大功率低频超声场的测量未得到很好的解决，尚未找到一种与清洗效果有确定关系的普遍适用的标准方法，使得在客观地评判清洗机优劣时很困难。

The propagation property of apertured laser beams (propagation and control of actual high-power lasers) is a complicated and challenging subject in the field of high-power-laser technology and a frontier subject many researchers devoting to.

受光阑限制光束传输特性(实际强激光的传输与控制)是强激光技术研究领域中面临的具有相当的复杂性和挑战性的课题，也是国际同行们正在努力研究的前沿课题。

To achieve the program of finite element, which apply to the two-dimensional temperature distribution of high power laserAccording to the diathermanous principles and the thoughts of finite element, the temperature distribution of the chip and the submount of high-power laser were simulated in the work.

2实现了适用于大功率半导体激光器二维温度场的有限元程序根据传热学的基本原理和有限单元的思想对大功率半导体激光器的芯片和载体的温度场进行计算机模拟了，最终求解出了总体温度刚度矩阵K_总和总体边界条件矩阵P_总，进而求解出各个节点的温度值T。

RoyalRay series high power, medium power HF tag readers are designed upon fully self-intellectual property. Based on proprietory efficient anti-collision algorithm, they features excellent tag read/write operation performance with high identification rate. They can be widely applied in many RFID application systems such as logistics, personnel identification, conference attendance, access control, anti-counterfeit and industrial production process control.

荣睿系列大功率、中功率电子标签读写器基于完全自主知识产权设计，结合专有电子标签解码核心与处理算法，在保持高识读率的同时，实现对电子标签的快速读写处理，可广泛用于物流、个人身份识别、通道管理、门禁、防伪及生产过程控制等诸多RFID系统应用领域。

Based on the laser longitudinal mode splitting theory, a novel scheme of dual-frequency laser with large frequency-difference is presented using electrically controlled birefringence of liquid crystal, and the transmitted resonant mode splitting by birefringent of Fabry-Perot etalon has been analyzed theoretically. A new element of liquid crystal Fabry-Perot etalon is designed and fabricated, which serves as aselector and splitter of both laser longitudinal modes and Fabry-Perot etalons transmitted resonant modes. Two different experimental systems of laser-diode end-pumped Nd:YAG laser have been set up using two different LDs, and the transmission of liquid-crystal cell have been measured. When the empty LCFP is inserted in the cavity of high-power LD pumped Nd:YAG laser, the oscillation of a single laser longitudinal mode have been observed, such a result shows that the designed and fabricated LCFP element is capable of selecting single axial mode. While an anti-reflected liquid crystal cell is inserted in the cavity of Nd:YAG laser end-pumped by the high-power LD, it is difficult to confirm weather the laser longitudinal modes have been spitted or not. The subject is summarized in this thesis and the improvement of the project has been presented.

论文以激光纵模的分裂理论为基础，提出了可望获得几十GHz甚至上百GHz的液晶电控双折射双频Nd：YAG激光器的总体方案，并对用双折射效应分裂F-P标准具透射谐振模进行了理论分析；设计并加工了一种集激光纵模选择、激光纵模分裂和F-P标准具谐振透射模分裂于一体的多功能元件——液晶电控双折射F-P标准具；建立了两种不同功率激光二极管端面泵浦的Nd：YAG激光实验系统，并对液晶盒的透射性质进行了测试；将未灌注液晶的空液晶F-P摘要标准具插入大功率LD泵浦Nd：、叭G激光谐振腔内，观察到了单纵模激光输出，说明所设计和加工的液晶F一P标准具具有纵模选择能力；将镀有增透膜的液晶盒插入大功率LD泵浦Nd八7AG激光谐振腔内，是否产生了激光纵模分裂现象还难以确定。

In the invention, a plurality of high power LED chips are integrated on a laminated base plate of aluminum nitride AIN and low temperature co-fired ceramic LTCC. The heat dissipating capability of the high power LED chips is improved from the levels of the underlay, a bond coat and the base plate.

本发明采用多颗大功率发光二极管LED芯片集成在氮化铝AlN和低温共烧陶瓷LTCC叠层基板上，从衬底、粘结层和基板三个层次上提高大功率发光二极管LED芯片的散热能力。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。