查询词典 preliminary design

Theoretical analysis: Deduce the corresponding preliminary theoretical formula and bring forward design method of trapeziform labyrinth screw pump, Integrate professional knowledge of Fluid Machinery, Make out structure chart、 accessory charts、 experimental equipment.

理论分析：在文献基础上推导出相应的理论计算公式并初步提出梯形迷宫螺旋泵设计方法；结合流体机械专业知识，设计出迷宫泵的总体结构图、生产零件图、实验装置图。

Patent, and then the blade-to-blade flow was computed by solving the two-dimensional steady Navier-Stokes equations, finally, overall performance and internal flowfield characterization were obtained and analyzed.2. As to radial matching between blade sections, preliminary investigations were developed from three aspects such as stall margin customizing technique, control technology of tip clearance flow, prediction model and control technology of corner separate.a On basis of reviewing on methods of achieving the goal of stall margin in design process of fan and axial-flow compressor, in conjunction of understandings on "Sweep/Dihedral", stall margin customizing technique was put forward; two-dimensional performance prediction method for stall margin customizing was developed, it can consider influences of radial stacking patterns of blade sections and axial distances between blade rows conveniently and rapidly.b A simple model for tip leakage mixing loss of unshrouded blades for compressible flow was presented.

二、叶片基元展向匹配方面，本研究从影响负荷最大化的叶身展向积迭注：原(来源：ABC论文35网www.abclunwen.com指掠弯是裕度定制的一部分，为方便论述，本文将此统一论述为裕度定制、叶尖间隙、叶片与端壁角区这三个最重要因素出发，探讨了各因素影响负荷最大化的机理，并由此给出了最大负荷设计过程中的技术措施和努力方向。1从掌控风扇/轴流压气机裕度方法回顾入手，探析了美国和俄罗斯裕度控制方法及相应特点，结合对&掠/弯&因素的认识提出了裕度定制技术：并开发了能够体现裕度定制思想的二维特性预估方法，可在二维层面下方便快捷地考虑以掠/弯为代表的叶片基元展向积迭以及叶片排间轴向间距带来的影响；2借鉴Denton关于不可压叶尖泄漏损失的理论分析，推导出适用于可压缩流动的叶尖泄漏掺混损失计算的基本关系式。

From meditating the design status of our country'S large-scale square and neatening,analyzing and summarizing large amount of examples and investigated data,this paper introspects on urban squares in contemporary China mainly from three aspects.Firstly,it analyses the develop process and the present state;secondlv.it pays attention to the questions of urban squares as public space;thirdly,it gives a preliminary discussion on its premise and trends in the future.

本文即从反思我国当代城市广场的设计现状出发，通过对大量实例、调研资料的整理、剖析与理论总结，从三个方面对我国当代城市广场建设进行了深入思考：一是分析当代城市广场发展脉络及当下状况；二是在这样的脉络下探讨近年来中国这些新兴的广场作为公共空间所呈现出的问题；三是试图提出突破困境的可能，进一步探讨未来城市广场的发展前提与趋势。

On the background of National Defence Preliminary 95 projects, this dissertation prosecutes the design research of DSP chip core.

本文结合九五国防预研课题背景，进行DSP处理器芯片核的设计研究。

Since it was established, it has been working hard to innovate hospital care and surgical equipment. The company has a high-quality design team, can be designed according to customers' requirement of scientific and practical, beautiful, medical equipment products. And it continuously increased investment in production equipment and improved production technology such as CNC cutting machine, CNC bending machine, CNC punch and other high-end equipment. At the same period, Company established industry investment in the largest spraying plastic line and preliminary treatment equipment in Shandong Province, coating using world-leading akzo Nobel powder coatings.

公司自成立以来，一直致力于医院护理、手术设备的研制与更新，拥有一支高素质的设计开发团队，能够按照客户要求设计出实用、美观、科学的医疗设备产品；不断加大生产设备的投资力度，不断改进生产工艺：新上了数控剪板机、数控折弯机、数控冲床等高端设备；投资新建了省内同行业规模最大的喷塑流水线和前处理设备，涂层采用世界领先水平的阿克苏诺贝尔粉末涂料。

The first of the I2C-bus design of the Avalon bus interface specifications and a preliminary understanding, the use of Verilog HDL language of I2C modules were prepared, and then carried out Modelsim compiled simulation software simulation, simulation waveforms obtained, and finally to adopted by the compiler to achieve the I2C IP core in the SOPC BUILDER module can generate nuclear IP core, the IP core of the I2C is Avalon bus interface, and then prepared NiosII system testing software, to achieve the functions of I2C bus.

本设计先对I2C总线的规范和Avalon总线接口进行了初步的了解，使用Verilog HDL语言对I2C的各个模块进行了编写，然后在Moelsim仿真软件内进行编译仿真，得出仿真波形，最后把编译通过的，实现I2C总线IP核的模块在SOPC BUILDER中生成可以调用的IP核，这个I2C的IP核是采用Avalon总线接口的，然后在NiosII中编写系统测试软件，实现I2C总线的功能。

This article in the collection analyzes the domestic and foreign high speed roller bit bearing research pertinent data in the foundation, in view of the present high speed roller bit bearing in the field application existence's question, through to the roller bit bearing main failure mode and the reason analysis, found the extension roller bit service life the theory basis, uses the method which the theory and the experiment unified to develop to the roller bit bearing surface strengthening technology as well as the bearing enclosure system's preliminary study, has provided a new mentality and the method for roller bit's design, further impelled the modern well drilling processing technology the development.

本文在收集分析国内外高速牙轮钻头轴承研究有关资料的基础上，针对目前高速牙轮钻头轴承在现场应用存在的问题，通过对牙轮钻头轴承主要失效形式和原因的分析，找到延长牙轮钻头使用寿命的理论依据，采用理论与实验相结合的方法开展了对牙轮钻头轴承表面强化技术以及轴承密封系统的初步研究，为牙轮钻头的设计提供了一条新的思路和方法，进一步推动现代钻井工艺技术的发展。

Some preliminary suggestions have been made on some problems involved in the design andmanufacture of multi friction disk stepless speed change device .

本文仅就多摩擦盘无级调速器的运动设计、传动分析和关键件的选材、加工和装配等问题，提出粗浅看法，供有关设计和生产部门参考。

Creature Design Supervisor Phil Tippett and his crew developed a number of preliminary maquettes.

生物设计总监Phil Tippett和手下完成了许多小模型。

Specifying processes design for new programs and determine process proposal, provides capital estimation on all equipments and toolings and complete preliminary MPPS for department Manager's review.

定义新项目的工艺流程设计并确定工艺方案，为所有的设备和工装夹具提供资本评估并完成初步的投资分析交给部门经理评审。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。