高速度

It features the high sensitivity of a condenser microphone, yet exhibits the smoother frequency response and excellent transient response of a ribbon microphone.

R102铝带麦克风专为当今广播电视录音设计，它不仅具有电容麦克风的高灵敏度以及平滑的频率响应，又有比电容式麦克风更快的速度响应，速度响应为麦克风中的首选。

Advantages of traditional crank press technology include low production cost and high speed production rate (30~1200 pieces per minute). Requirements of complicated die and limited product forming are the shortcomings. Additionally, the advantages of traditional hydro-forming technology are good product quality, complicated geometric shape and easy-made die. However the disadvantages are expensive cost of equipment, low production speed (less than 5 pieces per minute), and is not applicable to multi-station progressive process and high pressure working environment that has the concern of industrial safety.

传统曲轴冲压技术之优点是生产成本低廉及生产速度快(每分钟30~1200件)，缺点是模具复杂及成品形状成形性受限制；传统液压成形技术之优点是成品品质佳、几何形状容许大变形及模具简易，缺点是设备成本高、生产速度很慢(每分钟5件以下)、不适合多工程连续加工且具有高压之工安问题。

The existing stone cutting tool, the tool bit is constituted by the sole grade's grinding material, when cutting the rough stone, the cutting speed is quick, the cutting efficiency is high, but the cutting surface fluctuates in a big way, becomes rough, after the cutting, grind and polishing take long time to do, if use the fine grinding compound, the cutting face is smooth, but the cutting speed is slow, the cutting efficiency is low, therefore the existing stone material cutting tool cannot have the high efficiency to cut the stone which have the smooth cutting surface, in view of this, how to keep the high working efficiency and get smooth cutting surface?

现有石材切具刀头由单一粒级的磨料构成，使用粗料时，切割速度快，切割效率高，但切割面起伏大，变得粗糙，切割后研磨抛光耗费时间长，使用细磨料，切割面较平整，但切割速度慢，切割效率低，因此现有石材切具不能高效率地切割出平整的石材，针对这一现状，如何既能高效率切割，又能使切割面保持平整呢？

The instruments the author used in the experiment are literature review, interviews, questionnaires and case study. Start from the point of view of strengthening amateur sportsmen's training method in view of the 400-meters sportsmen who haven't reached level 2 target in school PE teaching and amateur training according to the successful experience and long time of practice of some qualified 400 meters trainers and some out standing PE teachers as well as the accumulation of the related literature review the author construct theoretically the model of training 400 meters male dash with the target of improving the speed of 400 meters dash. That is to say from the following 4 aspics, speed index,speed endurance index,aerobic endurance index,strength index.Listing the relative theory of mode training by analyzing and comparing the results got by the subjects both before and after the experiment the author tries to find out a suitable final index mode for specific training .

本文运用文献资料法、访谈法、问卷调查和实验等方法，从重视基层业余水平田径运动员的训练、加强对业余水平运动员训练方法的研究为出发点，针对学校体育教学及业余训练中水平一般且未达到国家二级锻炼标准的400m跑运动员，依据国内400m跑专项高水平教练员、优秀体育教师多年训练实践的成功经验以及相关文献资料的积累，以影响400m跑专项成绩提高的主要内容指标，即速度指标、速度耐力指标、有氧耐力指标以及力量指标四个方面为切入点，从理论上初步对男子400m跑二级运动员专项训练的指标模式进行构建，并运用模式训练相关理论原理，通过实验前、后运动员成绩的对比分析，寻求符合其专项训练的最终指标模式。

This algorithm provides a more continuous feed motion using C2 continuous derivatives and nearly-arc spline parameterization.

该算法采用二阶连续可导的五次样条和近弧长样条参数提高了进给运动的连续性；速度控制算法保证机床在高速运行过程中加加速度的二次连续、加速度、速度和位移与时间关系的高阶连续变化，并且保证在各自的约束范围内，从而使机床的运动平稳，避免产生大的冲击和振动，同时有利于提高加工质量，减少加工时间。

This paper presents several control methods for BLDC motor, and describes their fundamental principles ,advantages and disadvantages in brief. The method of speed-independent function,based on a new flux linkage function,is explained in detail. This method makes it possible to detect the rotor position over a wide speed range from near zero to high speed.

本文介绍了几种无位置传感器无刷直流电动机的转子位置检测方法，并对它们的基本原理，优缺点作了简单的说明，详细地阐述了基于一种新磁链函数之上的与速度无关的位置函数控制方法，利用这种方法从零转速到高转速的宽速度范围内能检测到转子位置。

The paper analyzes the important elements which restrict the operation of offshore deepwater drilling riser, including tensile force in top riser, the angle ofbottom globe joint, floats, depth of sea water, and the effects of environmental loadings on riser distortion and strength.

本文对制约海洋深水钻井隔水管施工作业的一些重要因素进行了评价分析，主要分析了隔水管系统的顶部张力、底部球接头角度、隔水管浮力块、水深以及海洋环境载荷(海流速度、海浪周期、浪高、暗流速度及方向等)对隔水管变形和强度的影响。提出了可用于我国今后开展深水钻井隔水管分析设计和使用的理论和方法。

The desired cooling rate was achieved by simultaneously adjusting the cooling rate of argon-jet through the inner induction heating copper coil and the output power of the high-frequency generator controlled by the computer.

理想的冷却速度是通过同时调整冷却速度氩射流通过内铜线圈感应加热和输出功率高频率发生器所控制的计算机。

In addition, the leakage coefficient decreases with the decrease of gap width at the same rotational speed.

研究结果表明：用相对流量系数（转动时的流量系数与静止时的流量系数的比值）与速比（周向速度与轴向通流速度的比值）的函数关系表征泄漏量随转速变化的规律时，存在一个临界速比约等于1.0；低于这个临界速比时，转速对泄漏量的影响不明显；高于这个临界速比时，泄漏量随转速的增大而减小，在很高的转速下（6000r/min以上），泄漏量至少减小了5.1%；相同间隙下，泄漏系数随着压比的提高而近似线性增加；相同转速下，随着密封间隙的减小，相对泄漏量逐渐降低。

For the Z-shaped micro-channel micromixer by convective mass transfer, the inlet velocity has the very tremendous influence to the mixing, but the diffusion coefficient\'s impact is small to the mixing. Micromixer with S/W=2 structure can make the good mixing performance under each kind of speed condition. The smaller the angle of corner of Z-shaped micro-channel micromixer is, the higher the mixing performance is.

对于以对流传质为主的Z型通道微混合器，(来源：ABC论文53网www.abclunwen.com)入口速度对混合有很大的影响，而扩散系数对混合的影响较小。S/W=2在各种速度条件下均能取得较好的混合效果。Z型通道微混合器的转角越小，其混合性能越高。

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。