查询词典 miniaturization

This text introduce a sort of new pattern soft switch PFC circuit .First, analyze the develop course of the on-off power supply. Second, relate the harm of humorous wave to the commonality electricity net. Third, present the topology and the principium chart of the soft switch PFC and analyze it .At last ,set the parameter and simulates the converter of with matlab simulation. more over ,get the hold of well voltage and current wave , minish the spoilage of the circuit, enhance the efficience of the circuit, meet the demand of the miniaturization and viridity.

本文引入了一种新型的软开关PFC电路，首先分析了开关电源的发展历程，然后讲了谐波给公共电网造成的危害，再给出了这种软开关PFC的电路拓扑及原理图并对其工作原理进行了分析，最后对其参数进行设置在MATLAB软件进行了仿真，并得到了良好的电压电流波形，而且减小了电路的损耗，提高了电路的效率，实现了小型化，绿色化的要求。

Emphasis is placed on the use of organic thin films in active organic devices including organic LEDs, solar cells, photodetectors, transistors, chemical sensors, memory cells, electrochromic devices, as well as xerography and organic non-linear optics. How to reach the ultimate miniaturization limit of molecular electronics and related nanoscale patterning techniques of organic materials will also be discussed.

课程重点是放在主动有机元件内使用的有机薄膜，包括有机LED、太阳能电池、光子侦测仪、电晶体、化学感应器、记忆单元、电致色装置，以及影印技术和有机非线性光学；亦将讨论如何达到分子电子学和有机材质相关的奈米级制像技术的微缩极限。

Piezoelectric transformer with many advantages, such as small size, light weight, high efficiency, high voltage step-up ratio, safety, apyrous, lower EMI, no deterioration in shortcut and so on, is suitable for the miniaturization and integration of the control and drive equipment of piezoelectric materials.

压电陶瓷变压器具有效率高，体积小，质量轻，升压比高，无电磁干扰，不易燃，安全稳定及不怕短路等优点，适用于压电材料驱动器控制和驱动装置的小型化和集成化。

It will be miniaturization of dress face-lifting craft, civil change, simplified the craft of dress, managing cost, improved work efficiency, safe and avirulent, a person is operated.

它将服装翻新工艺小型化、民用化，简化了服装的工艺，节约了成本，提高了工作效率，安全无毒，一个人操作。

For the Mu1ti--Beam Swath Bathymeter, array miniaturization wi th wide covering width has cause peop1e s more attention.

中文摘要：对于多波束条带测深仪来说，使基阵小型化而又达到大覆盖要求的问题越来越引起人们的关注。

The liquid density sensors presented in this project are dependent on the Surface Acoustic Wave technics in the fabrication process. Considering the maturity of SAW technics and the easiness of high frequency BAW generation with the IDTs, it is convenient for sensors miniaturization.

本项研究工作提出的微量液体密度传感器在制作上仅需采用成熟的声表面波工艺即可，实现起来比较容易，叉指换能器容易激发较高频率的体声波，便于传感器小型化。

Five water sampling collected from Miyun Reservoir were observed quantitatively. Thirty-six species of zooplankton including 11 protozoan, 15 rotifers,6 cladocero and 4 copepoda were found. The results showed the eutrophicational feature, such as lower biodiversity ,miniaturization and more amount.

浮游动物共检出4门，30属，36种；浮游动物群落具有原生动物数量多，轮虫次之，枝角类与桡足类量少的特点，呈现出浮游动物数量大、小型化、多样性低等伴随水体富营养化出现的特征。

All these characteristics can extend frequency band , reduce antennaelectric size and improve impedance characteristics. In order to miniaturization ofantenna, impedance complete compensate and matching optimization of electricallysmall antenna are brought forward, and this method is applied to the discage antennas.

从阻抗特性和辐射特性的实测数据表明，水加载单极振子天线的谐振频率能很好地向低端下移，局部水加载单极圆锥天线在保持原有宽频带特性的前提下，以较少的效率损失实现了较大范围向低频区扩展，即天线小型化，这将为短波超短波波段天线进一步的小型化设计提供很好的思路。

For electroceramics, the miniaturization of electroceramic components is accompanied by the necessity of reducing of the grain size, and it leads to begin investigating the grain size effect on properties.

就电子陶瓷而言，微型化即代表著晶粒缩小，而晶粒缩小对性质往往会有显著的影响。

This thesis is composed of four sections. Section 1 gives an overview of theories about elderly security. It involves the demand of the aged, the concept, content, influential factors of family elderly support, the concept, content, type, model and economic effect of public pension, theories searched from the study of Chinese elderly security. Section 2 introduces the history of family elderly support, analyses the reasons of the existence of it, expatiates on the factors that weaken the function of it, such as modernization of agriculture, population aging, family miniaturization, urbanization etc. section 3 introduces the history of the social old-age insurance in Chinese rural areas, analyses its impendency from the aspects of social stabilization, the rights and interests of the peasants, rural employment. Section 4 is the most important part of the thesis. It first refers to foreign practical experiences on rural elderly security, then demonstrates the elderly support at home which combines family elderly support and social elderly support, especially analyses the public pension.

全文共分四部分：第一部分是养老保障概论，介绍了老年人的养老需求，家庭养老的概念、内容及影响因素，社会养老保险的概念、内容、类型、模式及经济效应，中国农村养老保障研究的相关理论；第二部分是中国农村家庭养老分析，介绍了家庭养老的历史，分析了其长期存在的依据，并进一步阐述了农业现代化、人口老龄化、家庭小型化和城市化等对中国农村家庭养老的冲击，弱化了家庭养老的功能；第三部分是中国农村社会养老保险分析，介绍了中国农村社会养老保险的发展历史，从社会稳定、农民权益和农村就业等方面分析了建立社会养老保险的迫切性；第四部分是建立中国农村社会养老保险制度的政策建议，是文章的重点，在借鉴国外农村养老实践经验的基础上，阐述了适合我国农村现实的家庭养老和社会养老相结合的居家养老，并对其中的社会养老保险进行了比较细致的分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。