查询词典 developing countries

This thesis investigates the profile extraction and shape optimization on the result of topology optimization of planar compliant mechanisms. The main context includes the following work:(1) summarizing and analyzing the recent research status, some harvest and unsolved problems;(2) analyzing the conceptual design of planar path-generating compliant mechanisms and its mathematical model and tools;(3) Modifying the method of density contour as the method of profile extraction, and developing a method to optimize the density function in the profile extraction according to the requirement of the design of compliant mechanism;(4) developing a method to abstract the compliant mechanism into a form of links and joints by using the principle of connectivity on topology;(5) developing a method of shape optimization of planar path-generating compliant mechanisms, by representing the profile of the abstracted compliant mechanism as simple curves such as straight lines and arcs, establishing the models of the size optimization of the parameters of these curves, so that the compliant mechanism has a machinable shape;(6) At last, proving the feasibleness and effectiveness of the design method by making simulation design and validating it in FEA software.

主要工作包括：(1)分析了柔顺机构拓扑优化和形状优化的研究现状，分析了目前柔顺机构的研究重点、主要成果和尚未解决的问题；(2)分析了基于SIMP的柔顺机构概念设计方法及其相关工具和模型；(3)针对柔顺机构轮廓提取的特殊要求，提出了密度等值线法的改进方案，对密度函数插值点密度值进行优化，提出优化模型和选择优化算法；(4)根据轨迹输出平面全柔顺机构自身的形状特点，提出了轨迹输出平面全柔顺机构的抽象方法，即应用拓扑学上的连通性原理将柔顺机构抽象成杆件和结点形式，并对相应的数学原理进行了证明；(5)提出了平面全柔顺机构的形状还原和尺寸优化方法，对抽象的柔顺机构进行还原，将其轮廓还原成简单曲线的连接，从而建立尺寸优化模型，对机构进行尺寸优化设计，在得到可加工的机构轮廓的同时又能对关键部位进行特别处理；(6)进行了柔顺机构的数值仿真设计，并将所得设计结果导入商用有限元软件中进行仿真实验，证明了设计方法的可行性和有效性。

At least 5 layers of retina were recognized in the posterior retina, including the simple pigment epithelium, neuroblastic cell layer, developing inner plexiform layer, developing ganglion cell layer and the developing nerve fiber layer.

后极视网膜至少可分为5层，即色素层、成神经层、发育中的内网层、节细胞层和神经纤维层。

Eman***ting the mind is a magic instrument for developing socialism with Chinese characteristics, reform and opening up provide a strong driving force for developing it, and scientific development and social harmony are basic requirements for developing it.

解放思想是发展中国特色社会主义的一大法宝，改革开放是发展中国特色社会主义的强大动力，科学发展、社会和谐是发展中国特色社会主义的基本要求，全面建设小康社会是党和国家到二零二零年的奋斗目标，是全国各族人民的根本利益所在。

And it not only enhances the software developing speed and shortens the Embedded Real-Time products developing period, but also geminates the software developing efficiency.

模式也是一种通讯语言，它可以在熟悉它的人们之间方便交流，我只要说出模式的名字对方就会明白我在说什么而不用去猜测，这也是一个很大的优势。

To discuss the basic theory, function and methods of designing and developing AMPES can lead the direction for designing and developing other expert system in the field of agricultural mechanizing production, can make a foundation for developing agricultural information.

探讨农业机械化生产专家系统设计开发的基本理论、研究农业机械化生产专家系统的功能以及设计和开发方法，又可以为农业机械化其他领域专家系统的设计与开发探明道路和方向，为进一步发展农业信息化奠定基础。

The train of using the non-intelligence must obey the students psychological developing feature. It not only outstands the nucleus, but also develops coordinated. Meanwhile, it has to combine the intelligence developing and able developing.

非智力因素的培养要遵循学生的心理发展特点，既要突出核心又要协调发展，要与智力开发和能力发展相结合，还应注意因材施教。

At last, it uses regional developing economics and regional innovation theory to puts forward the strategic of adjusting industrial structure. The total train of thought is as follow. First, strengthening the Pearl River Delta, building the Pearl River Delta into the main electronic information product manufacturing center, national software industry center and information technology application center. Then extending to Hong Kong and Macro to make up the weakness of the Pearl River Delta. To the aspect of fund and information, it must extend to under-developing regions, draw up individual chain, transfer some industrial chain that losing strength to under-developing regions.

再综合运用了发展经济学、区域创新理论，提出以珠三角为突破口，着眼于珠三角经济区信息产业的综合优势，打破地区界限，进行产业结构调整，总的思路是：首先在继续做大做强珠三角地区，把珠三角建成国际主要的电子信息产品制造业基地、国内重要的软件产业基地和国内先进的信息技术推广应用基地的基础上，外延港澳地区，增大珠三角，弥补珠三角的劣势：资金和信息方面，内延欠发达地区，制定各地区的个性化产业链，把部分丧失优势的产业链转移到欠发达地区。

The developing driving part has a developing roller gear formed on a developing roller shaft.

显影驱动部件具有形成在显影辊轴上的显影辊齿轮。

Particularly when entering this new century, with the deteriorating problems of global population expanding, resources shortage, environment pollution and zoology deterioration and so on, especially the contradiction among national developing demand, limited resources tolerance and weak ecological environment becomes more and more keen-edged that traditional developing mode haven't been able to keep up with the demand of the age, the land ecological planning will come into a booming developing period without any doubt.

特别是进入新世纪，随着全球性的人口增长、资源短缺、环境污染和生态恶化等问题的加剧，尤其国家的发展需求、有限的资源承载力与脆弱的生态环境之间的矛盾日益尖锐，传统的发展模式已经不适应时代发展的需要，土地生态规划必将进入了一个繁荣发展的时期。

Firstly, it defines the meaning of developing way of freight transportation, measures the types of developing way of freight transportation from different angles, and analyzes the influencing factors of developing way of freight transportation.

首先界定了货物运输发展方式的涵义，从不同角度划分了货物运输发展方式的类型，分析了影响货物运输发展方式的因素。

It is like a mustard seed, which a man took and planted in his garden.

好像一粒芥菜种，有人拿去种在园子里，长大成树，天上的飞鸟宿在他的枝上。

The increase in narcissism was stronger for women than for men in both datasets.

在自我陶醉的增加是更有力的比这两个数据集男性。