高速的

It is proved in production practice that the actual conversion values between rockwell and vickers hardness of quenched tempered high speed tool steel dont correspond with the values in GB/T1172-1974 《Conversion Tables on Hardness and Strength of Ferrous Metals》.

引言多年来，一些高速钢工具专业生产厂和自用生产厂在测量淬硬高速钢的洛氏硬度 HRC和维氏硬度 HV时觉察到两种实测硬度之间的换算值与国家标准 GB/T1 1 72 - 1 974《黑色金属硬度及强度换算表》中的换算值不相符合。

In this paper , the application and prosperity of CAD/CAM Technology applied on 5-Axis production center, one type of which is DECKEL MAHO machine, is generally surveyed. One large part of this study concentrates on the HSM related to 5-Axis technology and CAD/CAM, especially, the achievement and technique about the HSM strategy carried on 5-Axis production.

本文综合论述了CAD/CAM技术在五坐标数控加工中心的应用情况及前景，着重就高速加工技术、五坐标数控加工技术和CAD/CAM技术之间的联系，探讨了高速加工策略在五坐标数控加工中心实现的方法和步骤。

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。

Unlike ordinary monohull, trimaran slamming includes not only main hull bottom slamming,but also slamming of trimaran cross structure,which makes trimaran slamming more complicated.

新船型高速三体船的砰击问题与常规单体船不同，除了主船体底部砰击外还包括连接桥砰击，这使高速三体船的砰击问题更为复杂。

Hammer-flake grinder uses the energy that the high-speed rotary, hammer-flake schleps to hit the raw materials, and makes them luther grinde when gear plate and sieve plate hit together.

锤片粉碎机利用高速旋转的锤片所携带的能两撞击物料，使物料破碎并能高速与齿板碰撞后进一步破碎，此过程反复进行，直到物料小于筛板孔径后穿过筛板排出机外。

In the wake of high speed tendency of rail transit, high speed train has exerted more apparent impacts on personnel and environment.

提 要：随着轨道交通的高速化，列车高速运行对人员和环境的影响越来越明显。

In contrast,the SAW and PSAW have Δv/v effect.These datashow that the high velocity surface acoustic mode is the high velocity head wave.

这些充分证明了，压电晶体半空间中普遍存在的高速表面模式是我们所预期的高速头波。

Based on the wheel/rail multi-point contact in turnout zone, a dynamic design theory for high-speed railway turnout was established and several creative designs were made, such as separated semi-tangent switch plane linetype, horizontal hidden nose structure of turnout frog, short transitional top surface figure of the switch rail, and track stiffness of turnout with even elasticity.

基于道岔轮轨多点接触关系，建立了高速道岔动力分析理论，并设计出适合我国高速道岔的相离式半切尖轨平面线型、心轨水平藏尖结构、尖轨短过渡顶面轮廓和弹性均匀的岔区轨道刚度。

This paper first theoretically analyzes the changing rule of surface roughness for different cutting parameters when aluminum alloy holes are being cut at high speed by PCD lathe tools.

在高速切削过程中，切削速度、进给速度是影响加工表面粗糙度的决定性因素用PCD刀具对铝合金孔进行高速切削时，对不同切削参数下的表面粗糙度变化规律进行了理论分析和试验研究。

The oxidation of high speed steel was studied at 500 ℃, 650 ℃ and 800 ℃ in the air, and the isothermal oxidation kinetics curves were obtained by thermo gravimetric analysis.

借助热重分析仪研究了高速钢轧辊工作层材料在500 ℃、650 ℃、800 ℃下于空气中的恒温氧化行为，得到了高速钢在不同温度下的恒温氧化动力学曲线。

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。