高速

This paper presents research and development proce- dure, structure design and performance of engine of 258 kW, which is the highest power ranking of the D683 family. high speed marine diesel engine, structure design, performance optimization

本文主要介绍258kW D683高速高性能船用柴油机的结构设计、性能研究和研制开发的情况。2产品用途的定位以高速高性能船艇的主机动力以及类似要求的船用动力为主要配套对象，经过

FPGA has the advantages of design agility, strong adaptability and reconstruction, while Synchronous Dynamic Random Access Memory has the advantages of high speed, mass storage and superiority of price, so the method of using FPGA and SDRAM to design a high-speed real-time data acquisition system is widely used.

近年来FPGA由于其设计灵活性、更强的适应性及可重构性，结合SDRAM的高速、大容量、价格优势，在设计高速实时数据采集系统时受到了广泛的关注。

The high-speed resin incises the emery wheel and high-speed resin Cape to dub out the emery wheel, is comprehensive at home and abroad the most advanced craft technique, the original material that make use of the superior quality, adopt the special formulation to research to manufacture but become of, high bear to whet, high strength, high-efficiency, the safety is dependable new to change a product, through domestic and international numerous well-known factories the usage of the house certificate, its quantity and safe coefficient all is incomparable, in really currently the top product of the Chinese market, be subjected to the local and large framework business enterprise, such as steel factory, shipyard, machine factory, boiler factory, deeply, the industry installs the company and in the world the favor and the good opinion of many national businessman's.

高速树脂切割砂轮和高速树脂角向磨光砂轮，是综合国内外最先进的工艺技术，利用最优质的原材料，采用独特配方研制而成的，高耐磨、高强度、高效率、安全可靠的新型换代产品，经国内外众多知名厂家的使用证明，其质量和安全系数均是无与伦比的，实为目前中国市场上的顶尖产品，深受国内大型骨干企业如钢厂、船厂、机械厂、锅炉厂、工业安装公司及世界上许多国家客商的青睐和好评。

PCFK series of pairs of counter-reversible hammer crusher is a new crushing equipment, mainly by knock-on effects to broken materials, broken process in general is this: the material falling into the break in the world, imported high-speed rotation of the hammer impact face was against the entrance of the adjustable crusher tooth wear plate, for the first time broken, broken after the particles basically the same material evenly into the main break, the secondary primary crushing, crushing in the main chamber has been uniformly The material was re-kinetic energy particles from the hammer, high-speed rushed back inside the jagged cavity lining was broken, due to the special lining sawtooth-shaped structure.

PCFK系列可逆双反击锤式破碎机是一种新型破碎设备，主要是靠冲击作用来破碎物料的，破碎过程大体是这样的：落下的物料进入破世界进口后，遇到高速旋转的锤头冲击而被打击到破碎机进口处的可调耐磨齿板上，进行首次破碎，破碎后颗粒基本相同的物料均匀的进入主破碎内，进行二次主破碎，在主破碎腔内已被均匀的物料颗粒从锤头再次获得动能，高速冲向反击腔内部的锯齿形衬板而被破碎，由于衬板特殊的锯齿形结构。

MULTI-COLOR HIGH SPEED OFFSET PRESS; UV SPOT COATING MACHINE; FEEDER; FEEDBOARD; ROTARY SHEETER; AUTO CALENDER MACHINE; AUTO VARNISHING MACHINE; AUTO ...

单色 /双色/四色高速自动平版印刷机； UV高速自动平版印刷机；单张纸送纸机/送。。。

The spatial distribution of forming pressure in electromagnetic forming can be controlled by the configuration of the coil and field shaper.

本计画利用电磁成形的高速成形特性，搭配线圈与集磁块的设计，探讨铝合金以及不锈钢板材在高速成形下对精微特徵尺寸的压印成形能力。

The propulsion control system is one of the four subsystems of theMaglev vehicle. The propulsion control theory with field-oriented control is the key technology of the propulsion control system. In this paper,the characteristics of Maglev vehicle propulsion control system with FOC aredeeply studied and analyzed.

牵引控制系统是高速磁悬浮列车四大子系统之一，基于磁场定向控制理论的牵引力控制又是牵引控制系统的核心技术，本文深入研究和分析了在不同磁场定向控制方式下高速磁悬浮列车的牵引特性。

In this paper, problems and related technical measures about structure of acquisition system, preamplifier , power and earthing, which must be considered in designing foreside of high-speed data acquisition system, are discussed.

研究了关于高速数据采集系统前端设计时需考虑的结构、前置放大器、电源和接地等问题及其相应的技术措施，从而为设计高性能的高速数据采集系统提供参考。

The development direction changed direction according to the four-wheeler, the domestic and international company changes direction organization to control to the four-wheeler currently main adoption of is a numeral control, this is owing to a lot of advantages of numerical control:the procedure turn a control, the controller carries on the processing of operation and numerical information according to the control regulation designed, mainly passing procedure to carry out, if change control regulation need to change software, but need not change the hardware structure of system: control the accuracy is high, in the emulation the control the system, the accuracy of the controller from the accuracy of the component but settle, numerical controller accuracy from word long decision;Stability good;The software replies to use, needing a hardware environment of using the homology realization in the emulation the system, the numerical controller is a procedure control, the sub- procedure mold piece which need to be designed and write to carry out its model, can immediately carry out several links of functions expediently.

目前各个厂家大多采用的是PLC、单片机应用于四轮转向控制器中，功能基本能够实现，相比较之下，信号处理能力较强的数字信号处理器各方面均性能优于以上三种处理器。DSP是新世纪数字化革命的核心。它是一种独特的微处理器，具有可编程性，且实时运行速度远远超过通用微处理器。强大的数据处理能力和高速的运行速度，是DSP最值得称道的两大特色。DSP芯片是一种特别适合进行数字信号处理的微处理器。它强调运算处理的实时性，因此除了具备普通微处理器所强调的高速运算和控制功能外，主要针对实时数字信号处理，在处理器结构、指令系统和数据流程上做了很大的改动。它具有灵活、精确、可靠性好、体积小、功耗低和易于大规模集成等优点。

It also adopts the method of the high-speed galvanometer to get wider work area and higher speed drilling.

为了实现宽幅面，高速制孔，采用了高速振镜制孔的光路形式。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。