查询词典 electronic

NEC's electronic devices including semiconductors, displays and other electronic devices.

NEC的电子设备包括半导体、显示器以及其他的电子器件。

This thesis focus on GPS application in magnetic suspension engineering:① the formulation of oblique cylindrical projection is worked out according to characteristics of long distance precise engineering and map projection theory. The author has developed an application to accomplish coordinate conversion from generally used coordinate systems to oblique Maglev Coordinates System.② considering not only project peculiarities but also position of control points, selection of initial points, connection type, selection of repeat baseline and ground observed quantities, GPS network is designed on electronic map and we may extract GPS network information by program developed using Visual Basic 6.0 while the results are stored in control point file and baseline vector file.③estimate accuracy of various GPS networks designed on electronic map by method of 2D restriction adjustment. GPS network simulation design and accuracy estimate come true.④Predominate the rules how connection type , repeat baseline and precise baseline of range finder influence GPS network precision through comparing accuracy of various GPS network. Thereby, the solution how to establish GPS network in long distance precise engineering is figured out.

本论文主要研究GPS技术在磁悬浮工程中的应用：①根据长距离精密工程的特点，从地图投影原理出发，推导出斜轴圆柱投影的应用公式，并编制计算软件，实现从常用坐标系统向斜轴磁悬浮坐标系统的转换计算；②在AutoCAD电子地图上，根据工程的需要，并充分考虑控制点的点位、起算点的选择、连接方式、重复基线的选择和地面观测量的选择等因素，在电子地图上进行GPS网的设计，根据Visual Basic 6.0语言编程，提取出GPS网资料，保存在控制点文件和基线向量文件中；③对在电子地图生成的各种类型的GPS网进行二维约束平差的精度估算，实现了GPS网的模拟设计与精度估算；④通过对各种控制网的精度比较，掌握连接方式、重复基线、精密测距仪基线对GPS网精度影响的规律，解决了长距离精密工程GPS网的建立方法。

Automobile engine;; Electronic system unit;; Single clip computer;; Off-board Diagnostics;; Electronic control system

论文导师柏逢明，论文学位硕士，论文专业电子与通信工程论文单位长春理工大学，点击次数 11，论文页数 55页File Size3058K

The researches on fair off-line electronic cash system have been one of the hottest topics on electronic payment system.

公正的离线电子现金系统方是电子支付系统研究方向的热点之一。

Several transient compounds were synthesized by the homo- and heterogeneous reactions of reactive halogen compounds, In-situ ultraviolet photoelectron spectroscopy and photoionization mass spectroscopy as well as theoretical calculations were used to study their molecular structures, stability and molecular orbital properties, their electronic structures and geometric structures were obtained for the first time; Simultaneously, the electronic structure and thermal dissociation of acetyl peroxynitrate and trifluoroacetyl peroxynitrate which have great importance in the atmospheric chemistry were studied; The substituent effects of series of halopyridines and halothiophenes were studied by the ultraviolet photoelectron spectroscopy method for the first time. The atmospheric chemical reaction between peroxyacetyl radicals with IO radicals as well as the dissociation of the most stable isomer of CH3COIO3 were calculated by density functional theory, it was found that the CH3COOIO2 isomer may be act as a new reservoir of inorganic iodine in the stratosphere.

通过活性卤素的系列均相与非均相化学反应合成了几种瞬态物种，采用原位紫外光电子能谱和光电离质谱结合量子化学理论计算对化合物的分子结构、稳定性以及分子轨道特性进行了研究，首次获得了这些物种的电子结构和几何结构的信息；同时研究了大气中有重要作用的乙酰过氧硝酸酯和三氟乙酰过氧硝酸酯的电子结构性质及热解过程；采用紫外光电子能谱手段首次研究了系列卤代吡啶和噻吩的取代基效应；通过量子化学理论计算研究了乙酰基过氧自由基与IO自由基的大气化学反应及其最稳定异构体CH3COOIO2的解离，发现该物种可能是无机碘化合物在平流层中的储库物种。

"Electric power Electronic technology" is the electrical engineering and the automated specialized important specialized fundamental course, this curriculum has the circuit diagram and the oscillogram are many, the switch component trades the class process to be abstract and the information content major characteristic, the traditional blackboard teaching way both time-consuming and is not convenient, therefore designs "Electric power Electronic technology" the CAI courseware has certain practical significance.

电力电子技术》是电气工程及其自动化专业一门重要的专业基础课，该课程具有电路图和波形图多、开关器件换流过程抽象及信息量大的特点，传统的黑板教学方式既费时又不方便，因此设计《电力电子技术》的CAI课件有一定的现实意义。

Cheng Wang Yuhang District, Hangzhou, power electronics equipment factory is located in Hangzhou, Yang pailou Tianmushan Road Industrial Area, are the production of electricity cabinets, chassis, electronic monitoring of standards, non-standard equipment manufacturing factories, factory technical consulting, technology services as the guide, in order to complete sets of technology and excellent after-sales service as the core and dedicated electrical, electronic monitoring industry with a perfect process to make our products pleasing in appearance, the structure of a solid, safe and reliable performance of the technical support and services.

杭州余杭区诚宏电力电子成套设备厂位于杭州市天目山路杨家牌楼工业区，是生产电力柜、机箱，电子监控的标准、非标准成套设备制造专业厂家，本厂以技术咨询，技术服务为先导，以成套技术和优良的售后服务为核心，竭诚为电力、电子监控行业提供完美的工艺流程，使产品外形美观，结构牢固，性能安全可靠的各项技术支持和服务。

A phenomenon very attracting people's attention, is electronic information technology and electronic product various in style, permeate through national defence, economy and each field of society extensively, become people's production, scientific research, work, the thing with indispensable life.

信息高速公路的建设，为有线电视网、Internet的发展带来了良好的机遇和巨大的市场。网络技术的发展历史地把计算机和网络紧紧地联系在了一起。1995年，被称为Internet年，1996年又被称为Intranet年。

Contents: A Brief Review of Elementary Quantum Chemistry; An Introduction to Electronic Structure Theory; The Born-Oppenheimer Approximation; Time Evolution of Wavefunctions; Angular Momentum Summary; The Unitary Group Form of the Hamiltonian; Introduction to Hartree-Fock Theory; Permutational Symmetries of Integrals; Notes on Excited Electronic States; The Quantum Harmonic Oscillator; Assigning Symmetries of Vibrational Modes; Notes on Elementary Linear Algebra

内容： 初等量子化学的简评；电子结构理论的介绍；天生奥本海默的接近； Wavefunctions的时间演化；角动量摘要； Hamiltonian的单位的组形式；哈特里-Fock 理论的介绍；积分的Permutational对称性；在令人激动的电子国家上注明；这台量谐波振荡器；分配振动的方式的对称性；在初等线性代数上注明

Our company specializes in producing power plate | power adapter | battery charger and electronic products, the development of other high-tech electronic products, the products sell well all over the country, well received by the user's trust and good-ping.

本公司专业生产电源板|电源适配器|充电器以及电子产品加工，开发其它高科技电子电器产品，产品畅销全国各地，深受广大用户的信赖和好平。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。