查询词典 background task

The article mainly introduces the development background of this task, the function that should be finished and the progress of development, and also explains the point, design thought, difficult technology and the way out.

在满足需求的同时，也体现出了操作简便、友好实用、安全可靠等特点。

Under the background of the fast development of economy all around the word, the entry to WTO and the trend of globalization, Chinese scholars have to handle a big task on how to promote the development of Chinese economy.

在世界经济飞速发展、中国加入WTO 以及全球经济一体化的浪潮下，中国经济如何发展是21 世纪中国学者面临的重大课题。

The main problems researched in the dissertation and achievements are as follows: The dissertation explains the science background and the theoretical and actual meaning of the task. The progress and the problems of the flow imaging technique are briefly explained. The advantages of electrical capacitance tomography are discussed. The paper discusses the formation and operating principle of ECT, and builds up the definite mathematical model by detail theoretical analyse, and establishes the Finite Element Model of the system by changing the finite boundary value problem of ECT into equivalence variation problem according to variation principle. On the basis of the FEM of the system, the paper builds the finite element model of the capacitance sensitivity field distribution and programs its finite element simulation software and proves the validity of the FEM of the ECT from different aspects. With the FEM and the qualitative analyse of the effect of each structural parameter of the capacitance transducer on its capability, this paper optimizes the structural parameters of the capacitance transducer, and obviously improves its capability. The compare of the simulated result with the static experimental result shows that the error of them is less than 0.9%.

其主要研究内容包括：阐述课题研究的学术背景及其理论与实际意义，概括总结出流动层析成像技术的发展现状和存在的问题，指出电容层析成像技术的优点；讨论电容层析成像系统的组成及工作原理，进行详尽的理论分析，以变分原理为基础，将ECT的有限元边值问题转换为等价的变分问题，从而建立系统的有限元模型；在系统有限元模型的基础上，建立敏感场的数学模型，编制有限元的仿真软件，并从不同角度证明电容层析成像系统有限元模型的正确性；利用有限元模型，定性地分析电容传感器各结构参数对其性能的影响，并对传感器结构参数进行优化设计，使其性能得到明显的改善。8电极ECT系统的仿真和静态实验结果的比较表明，它们之间的相对误差小于0。

So, in the new competition background, the sales channels construction of the telecom enterprises lias become a highly - valued task.

因此，在新的竞争背景下，电信企业营销渠道建设已成为一个值得高度重视的课题。

However sugarcane is a nonsexual propagation crop with highly ployploidy and complex genetic background,breeding pathogens-resistance cultivals by using traditoonal breeding techniques will be a formidable task.

但由于甘蔗是高度杂合、遗传背景复杂的无性繁殖作物，常规的抗病育种所需时间较长，盲目性大，效果也有限制。

The most important diseases are caused by fungi,eg Ustilago Scitaminea Syd.However sugarcane is a nonsexual propagation crop with highly ployploidy and complex genetic background,breeding pathogens-resistance cultivals by using traditoonal breeding techniques will be a formidable task.

甘蔗是我国最为重要工业原料作物，近年来由于高产、高糖甘蔗品种的大面积使用，又缺乏相应的抗病品种，甘蔗病害日益严重，尤其是甘蔗的黑穗病、梢腐病等真菌病害常在蔗区大面积流行，严重影响甘蔗的产量和质量。

My paper divides into three parts: The first part includes Chapter 1, Chapter 2. The Chapter 1 is mainly the brief description to the task study background, study meaning, method frame and relevant concept. Chapter 2 is mainly to conclude primal problem and challenge of planning in this kind of residential area by the analysis of existing circumstance to low-rise and low-density residential area of Chongqing suburb.

论文分为三个部分：第一部分包括第一章、第二章，第一章主要就课题研究背景、研究意义、方法框架以及相关概念进行简要的叙述；第二章通过对重庆郊区低层低密度住区的现状分析，归纳出该类住区规划面对的主要问题与挑战。

First of all, the paper introduces the background and the meaning of the task, expatiates on the academic knowledge used in it, and explains the current circumstances of the market of saloon car in china and the internal and external circumstances of 4S DLRs concisely.

本文首先介绍了选题的背景、意义，研究的内容和方法，阐述所用到的理论知识，简述了中国轿车市场的现状和4S专营店的国内外发展情况。

This article expatiates and argumentations contents as follow: background and meaningof study the task, basis concept of system simulation, technology of seeable, the theory of inner trajectory and test data analysis, inner trajectory numerical value simulation and test result analysis, computer simulation analysis system of shell in internal ballistic test, technology exploitation scheme of 3D simulation software and so on.

本文对研究课题的背景及意义、系统模拟仿真的基本概念、可视化、内弹道模型与试验数据分析理论、内弹道数值模拟与试验结果分析、炮弹内弹道试验计算机仿真系统、三维仿真软件开发技术方案等内容进行了阐述和论证。

The thesis mainly consists of:In chapter 1, on the ground of demanding background of the task, illuminate the urgent and important of the system on the manufacture and the embattle form of the buoy and methods about the experiments during synthesis experimentations that seeing about ocean underwater acoustic environment.

全文从以下几个方面进行了论述：在第一章里，从项目需求背景出发，说明研制本系统的紧迫性和重要性，概述了在海洋水声环境综合考察试验中，浮标的布阵形式及实验方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。