必要性

To provide integrated products is critical to whether a manufactural industry or a transport industry, while it is more necessary for the latter due to its special characters of products and production ways.

提供完整产品无论对制造业还是运输业都是至关重要的。但由于产品和生产特性的差别，运输业在提供完整产品方面有更大的必要性。运输业的发展过程实际上就是向客户提供越来越完整和质量更优的运输服务的过程。

The paper expounds necessity and urgency of formulating technical policy of railway marshalling Yards.

阐述了制订新的铁路编组站的主要技术政策的必要性与紧迫性。

In this paper, based on the analysis of the process and characters of the planning work of marshalling yards, the concept of building the DSS for yards planning is presented.

论文在分析编组站规划工作过程和特点的基础上，提出建立编组站规划决策支持系统的构想，并对其必要性进行了论证。

On the basis of it,we introduce the theory method and mathematic model of the petroleum resource value.

本文对我国石油业缴纳资源税的现状进行了分析，指出了实施级差式资源税的必要性，在此基础上，介绍了石油资源价值分级的理论、方法和数学模型。

China has implemented new courses in a few years, the study of middle school teachers teaching and students studying math on the investigation at this stage Instructional Design Research expounded on the need from classroom teaching and learning theories analysis, to find guidance in the design of classroom teaching under the new curriculum theory and classroom teaching on the design analysis of the whole process; From the typical class (class mathematical concepts and mathematical theory classes and study complicated math classes, the study of mathematics learning courses, open learning mathematics classes, cooperative learning math lessons) teaching the practice of design study, initial design, this is my classroom teaching design in recent years the practice of summary, the results of this study reflect.

新课程在我国已实施好几年了，本研究通过对初中教师与学生数学教学情况的调查，阐述研究现阶段课堂教学设计的必要性；从课堂教学理论、学习理论的分析中，寻找指导新课程下课堂教学设计的理论，并就课堂教学设计的全过程进行剖析；从几种典型课(数学概念课、数学原理课、数学复习课、数学研究性学习课、数学开放探究课、数学合作学习课)的课堂教学设计的实践研究中，提出初步的设计思路，这既是本人近年来课堂教学设计的实践总结，也是本研究的成果体现。

This paper made analyses to the main business of Shougang Group, by means of the Boston Consulting Group Matrix method.

运用发展战略分析理论，对首钢集团钢铁业外部经济环境、政策环境及行业发展趋势、主要竞争者进行分析，提出首钢集团参加华北地区主要钢铁企业联合、重组的必要性及方法。

Then, the expectation maximization algorithm is used to refine the results.

说明了本文提出的方法中引入EM算法的必要性。

But it is workable in terms of moral and medical ethics, as jurisprudence, and it can help us to improve the construction of the legal institutions , perfect the law system for protecting lives and enlarge the strength for life protection,so it is necessary and meaningful in practice.

但无论从安乐死的道德伦理的角度，安乐死的医学伦理的角度，还是从安乐死的法理学分析看，安乐死立法，对于健全我国的法制建设，完善对生命保护的法律体系，加大对生命的保护力度，不但具有理论上的必要性，也具有积极的现实意义。

Objective To explore the character and reveal the problems of medical parole at present, provide reference for making laws and poliocy, accumulate the medico-legal examination in medical parole.

目的为探索当前我国保外就医的特点，揭示保外就医中存在的问题，为制定有关政策法规提供参考依据，同时探讨保外就医的审查过程中法医学鉴定的必要性。

That happens because the acquirer typically gives up more intrinsic value than it receives. Do that enough, says John Medlin, the retired head of Wachovia Corp., and "you are running a chain letter in reverse." Over time, the skill with which a company's managers allocate capital has an enormous impact on the enterprise's value. Almost by definition, a really good business generates far more money than it can use internally. The company could, of course, distribute the money to shareholders by way of dividends or share repurchases.

就长期而言，公司经理然滥用公司资金将会对企业的价值有很大的影响，我们认为一家好公司所能贡献出的现金，一定会超过其本身内部所需，而公司当然可以透过分配股利或买回股份的方式回馈给股东，但是通常企业的 CEO 会要求公司策略企划部门，顾问或是投资银行，做出购并一，两家公司的必要性报告，这样的做法就好象是问你的室内设计师，你是否应该增添一条五万美元的地毯。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。