查询词典 beam-focusing

Focusing on the problem of the nature of the high velocity surface acousticsmode,we investigate the standard of judging which a wave is a surface wave,present the Green function of a pseudo-SAWand a longitudinal-wave headwave,thus developing the theory for generalized Green's function of surfaceexcitation of a piezoelectric crystal,with the hope to systematize this theory.

本文围绕压电晶体半空间上的高速表面声学模式热点问题，对表面波模式进行了界定，又发展了压电晶体表面激发的Green函数理论，给出了伪表面波及纵波头波的Green函数，从而形成更完整的压电晶体表面激发理论系统。

It consists of optical collimator system, optical focusing system, servo error signal generating system and the enforce element of servo system . It is a complex system, which is involved in optics, fine machine, electromagnetic, et al.

光学读取头包含准直光学系统、聚焦光学系统、误差信号提取系统、以及伺服系统的执行机构等部分，是一个综合了光学、精密机械、电磁学等学科知识的复杂系统。

It consists of optical collimator system, optical focusing system, servo error signal generating system and the enforce element of servo system .

光学读取头是光存储产业的核心器件，它广泛应用于各类光存储设备中。

Optical pickup is one of the kernels of optical storage industry. It is used for all kinds of optical storage systems widely. It consists of optical collimator system, optical focusing system, servo error signal generating system and the enforce element of servo system .

中文题名DVD光学读取头关键技术研究副题名外文题名 On key technology of DVD pickup 论文作者王继平导师阮玉学科专业物理电子学研究领域\研究方向学位级别博士学位授予单位华中科技大学学位授予日期2003 论文页码总数173页关键词DVD 光学读取头光盘光存储馆藏号BSLW /2003 /TQ597 /2 光学读取头是光存储产业的核心器件，它广泛应用于各类光存储设备中。

According to the geometrical optics, the focusing spot of this parabolic mirror is studied by ray tracking.

根据几何光学原理，采用光线追迹的方法对该抛物面镜的光斑进行分析，证明通过抛物面镜反射聚焦后，能够将原始圆形激光束整形为光强分布均匀的窄条形光斑。

All I have to do is focusing on the screen and typing down the germen words appeared on my mind according to chinese, mainly boring addresses or strange names.

毕竟大家都不是native speaker，翻译同一个内容会有不同的版本，还得统一咯，有的地方不是很准确的得改过来。

Once more, on the text this paper studies and discusses the fundamental, including network accounting connotation, similarities and differences of network accounting and traditional manual accounting and CAIS, technology criteria of network and some advantage; influencing, on trad- itional accounting theory(mainly focusing on, general principle etc.), ob- taining and making use of information; specialty, risk and precautionary, and so on. it puts forward the consult and sug- gestion.

再次，在主体部分围绕网络会计的基本原理(包括网络会计的内涵、网络会计与传统手工会计和会计电算化的异同、网络会计系统的技术标准、及其具有的优点)，网络会计对传统会计理论的影响(集中在会计的核算前提条件、核算一般原则等方面)，网络会计下会计信息的获取与使用，网络会计具有的特殊性及由此产生的风险和防范措施等若干方面进行详细的研究和探讨并阐述个人的基本观点，从而为网络会计在我国的健康顺利发展及为经济建设服务提供有益的参考和建议。

Written by pioneers in the study and analysis of very high cycle fatigue, Gigacycle Fatigue in Mechanical Practice compiles the most recent findings on gigacycle fatigue phenomena, focusing on improving the reliability and performance of key engine and machine components.

以开发者写在书房里和高循环疲劳的的分析，在机械实践过程中的Gigacycle 疲劳在gigacycle疲劳现象上编辑最新近的结论，集中于改进关键发动机的可靠性和性能和机器零部件。

The lyrics evoke the passage of the seasons, but focusing on the gloominess of winter.

歌词描述的是四季更替，但重点聚焦在冬季的忧郁。

Our company has established agencies in Beijing Guangzhou and Wuhan focusing on the distribution and sales of coating detecting instruments and experimental equipments from professional manufacturers in America Japan England and Germany including the Oven Temperature Track Color Difference Meter Thickness Gauge Glossmeter and other coating experimental and detecting instrumentsbesideswe also supply the market with series product of Scalar digital microscope.

武汉远京东和贸易有限公司（武汉康信科仪设备有限责任公司）致力于涂装检测仪器及实验设备的销售和服务，拥有多年的一线专业经历，细致的售前推介、丰富的实践经验和完渼迅捷的售后服务使我们颇获客户好评。公司目前在广州、北京、武汉等地设有服务机构，代理销售来自渼国、日本、英国和德国多家专业场商的涂装检测仪器和实验设备，包括色差仪、炉温跟踪仪、涂层测厚仪和光泽仪等涂装实验检测仪器和日本Scalar数码显微镜系列产品。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。