查询词典 by design

Firstly, the airfoil profile was parameterized by Bezier curves and the design space for airfoil family was specified by the full factorial design of experiment method.

基于上述模型对FX 63–167翼型进行优化改进，重点研究风力机翼型在3种运行工况点下的气动优化设计命题及其求解方法。

A series of internal documents from the late 1970s and early 1980s shows that BAT at least thought about applying this knowledge to cigarette design. A research report from 1979 puts it thus: There are three major design features which can be used either individuallyorin combination to manipulate delivery levels; filtration, paper permeability, and filter－tip ventilation. A conference paper from 1983 says, The challenge would be to reduce the mainstream nicotine determined by standard smoking－machine measurement while increasing the amount that would actually be absorbed by the smoker. Another conference paper, from 1984, says:（5）We should strive to achieve this effect without appearing to have a cigarette that cheats the league table. Ideally it should appear to be no different from a normal cigarette...

英美公司上世纪70年代末、80年代初的一系列内部文献表明，该公司至少曾考虑过将这一知识用于卷烟设计。1979年的一份研究报告上这样说道：可分别或联合应用与设计有关的三个要素，即过滤、烟卷包装纸的通透性以及过滤嘴的通气效果，来控制焦油和尼古丁的释放水平。1983年一份会议论文也提到，关键在于，要在提高吸烟者尼古丁实际吸收量的同时，减少可被标准检测方法测定到的含量。1984年另一份会议论文说：我们应当努力达到这一效果并能在检测中蒙混过关。

In this article two functional modes of the Fly-back Converter (Continuous Conduct Mode and Discontinuous Conduct Mode) are particularly analyzed, which include their characteristics, applications, the critical pattern of two functional modes is argued, both the exact boundary from the angle of circuit parameters is crystallized, at the same time, basic principle of PFC under the DCM mode is introduced, which settle theoretical basis for the subsequent design; by establishing the mathematic model of the converter, a further investigation of the configuration is made, qualitatively and quantitatively, analyzed to settle exactly theoretical basis for the subsequent emulation and the experimental parameter; from the angle of steady-state analysis, the transfer function of the system is deduced to establish dynamic small-signal state equation, emulating the system with the help of matlab, then according to the simulation result and the theory of PFC revise the system, lastly, we adopt the project which add a zero-pole compensator to the voltage loop, by this way, a satisfied system performance is gained and the PFC scheme is ensured successfully; finally, based on the previously-done work, we combining with the situation of specific design requirement, acquired the numerical value of each unit devices in this converter

详细分析了反激式变换器的两种工作状态，连续模式(Continuous Conduct Mode ，简称CCM)和断续模式(Discontinuous Conduct Mode，简称DCM)以及各自的特点、应用场合，论证了两种工作状态的临界模式，从电路参数的角度明确了二者的界限，同时还介绍了DCM模式下PFC的基本原理，为后面的设计奠定理论基础；通过对整个变换器系统建立准确的数学模型，对此变换器的电路结构做了进一步的研究，定性、定量地分析了变换器各部分的工作状态，为仿真和实验参数的确定以及电路参数的优化提供理论依据；从稳态分析的角度，为系统建立了动态小信号状态方程并推导出系统的传递函数，利用matlab对系统进行仿真，进而根据仿真结果以及PFC的相关理论对系统进行校正，采用在电压环加入零点—极点补偿器的设计方案，得到了满意的系统特性并且保证了PFC的顺利实现；最后，在前面所做工作的基础上，结合设计要求计算出此变换器系统中每个元器件的数值，利用Pspice对其进行了仿真、优化，然后根据仿真结果搭建了硬件电路。

According to the technical requirement of the design,we did the functional decomposition and built morphology matrix in design wood chipper ,and optimized the design plan by fuzzy assessment.

论述了功能设计法的基本概念和实施步骤，根据木材削片机设计的技术要求，对木材削片机的功能进行分解，并建立了木材削片机的形态学矩阵。

Firstly, the research studies the coding rule of the PDF417 barcode and designs related computer code algorithm, with making it programmed, and completes the coding part of the system software. Next, the coding and decoding principle of Reed-Solomon error-correcting code is briefly introduced. According to thecoding and decoding principle in galois field GF(929), to analyze and study its practical application with emphasis in this topic. Then, the PDF417 barcode decoding process is analyzed and studied detailed according to the barcode coding principle, with the corresponding realization method designed, improving the design in theory aspect by using material example, at the same time programming the design method to complete the decoding part of the system. Finally, validated the system program in the practical application of image information aspect, by using the nonrepeatability and the randomicity characteristic of Julia mark shape artwork.

本课题首先研究PDF417条码的编码规则并设计相关的计算机编码算法使其程序化，完成系统软件的编码部分；其次，简要介绍Reed—Solomon错误控制码的编码与译码原理，在伽罗瓦域GF(929)内根据其编译码的原理重点分析与研究其在本课题中的实际应用；然后根据条码的编码原则对PDF417条码的译码过程进行详细的分析与研究，并设计出相应的实现方法，利用具体实例对设计方法进行理论方面的实践同时将设计方法程序化完成系统软件的译码部分；最后利用Julia集分形图形的不可重复性和随机性的特点对系统软件在图像信息方面的实际应用进行了验证。

In the modern society of globalist characteristics, the idea of design art has been greatly changed by the means of high technology, and the whole level of design has also been raised, so that setting up a new thought of design art becomes a subject of the day.

在这个具有全球化特征的现代社会，设计艺术的观念在高科技手段的驱动下发生着深刻的变化，设计的整体水平已被提高到一个新的高度，开创设计艺术思路已成为时代的课题。

The Giotto Security Design System creates the bridge between the traditional guilloche, rossete, and security background design, originally created by cut and paste up operations, and the latest graphics technological advances made possible by complex mathematical modelling and the increasingly powerful personal computers.

Giotto 安全设计系统产生桥在传统的扭索状装饰， rossete 和安全背景设计之间，被削减本来产生而且在操作上面用浆糊黏，和最新图形被复杂数学的做模型和逐渐有力的个人计算机科技的进步制造可能的。

Web Design services by Highlander Web Design providing cost-effective and professional solutions for site development and web design all over the world.

网页设计提供网页设计服务高地成本效益和专业网站解决方案、网页设计开发全世界。

Based on the optimum variables of the impregnation got in the experiment, the daily design production of mechanical pulp of rice straw and the special characters of rice straw compared with the wood chip, the design of impregnator was finished by the process including calculation, structure design , check, selecting type etc.

设备设计部分，以工艺实验确定的最佳浸渍工艺参数为依据，根据日产40吨稻草机械浆的设计产量，并考虑到稻草的特有的属性，通过计算、结构设计、校核、选型等工作完成本论文的设备研制。

Yet, the exploration and resecrch in this aspect is especidly helpful to the perfection of the theoretiod system of gymncsiums design, dthough the studes by the writer are for away from being scientific and systemotic and most of the dscussions crenot profound enough. Sincethestudes in this book mdnly dad with the blank in the theory of gyrmasiums designs on which few work has been done before, therefore, its opinions and condusions are rother a kind of new exploration and attempt and sane omissions and improperness are unavoidde, and so comments and corredions from recders are encouraged It"s expectrd that sane explorations and dscussions with in this book will be dole to bring a completely new thinking to the design and operation of our country"s gymncsiums and fadlitate the scientific design and opertion of gymnasiums so as to bring many more stylish and more populcr gyrmnasiums to our society and the puldic and contributeto the buildng of harmonious society.

体育场馆的经营管理模式与设计的研究十分复杂，涉及到相当多的学科，笔者在这方面的研究还远未达到科学化、系统化，很多部分的论述还不够深入，但这方面的研究探索对体育场馆设计理论体系的完善是极为有益的，由于本书的研究是体育场馆设计理论中的一个较少涉及的空白点，因此本书的观点及研究的结论更多的是一种全新的探索与尝试，难免有一些遗漏和不当之处，望各位读者批评指正，希望本书的一些探讨能为我国体育场馆的设计与经营带来全新的思维，促进体育场馆的科学化设计与经营，为我国社会公众带来许多更新更符合大众需求的体育场馆设施，为构筑和谐社会做出有益的尝试。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。