The speeds are mind-boggling. High-frequency traders may execute 1,000 trades per second; exchanges can process trades in less than 500 microseconds (or millionths of a second).
高频交易的速度是难以置信的快——1000次交易每秒——而交易所能以500微秒(微秒即百万分之一秒)的速度处理每笔交易。
High-performance data acquisition is needed in some high speed and high precision measurements when signal measurements, image manipulation and audio frequency signal process are taken.
在信号测量、图像处理、音频信号处理等一些高速、高精度的测量中，都需要进行高性能数据采集。
Sonic loading is a high frequency, broadband random process. Basic cycle counting methods, which are prevalently used in time domain, are difficult to be applied.
噪声载荷是一种高频、宽带随机载荷，在低循环疲劳寿命预测中被广泛采用的时域计数法很难直接利用。
A big challenge to the development of this type of ASICs is the fabrication process for high-voltage, high-frequency pair JFETs.
国内在这些专用集成电路的研制工作中所面临的主要困难，是高耐压高频结型场效应对管的工艺制作。
The relative frequency and Doppler frequency rate estimation accuracy is high, and the process of solving the ambiguity is simple.
该算法具有相对频率估计精度高、解模糊过程简单、运算量小、多普勒频率变化率测量精度高等优点。
The nonlinear high frequency combustion instability process in the liquid rocket engine is simulated with the method of nonlinear dynamics.
采用非线性动力学方法对液体火箭发动机非线性高频燃烧不稳定工作过程进行了研究。
The demand to welding process of high-frequency welding pipe is introduced, some related parameters proposed.
介绍了高频焊管对焊接工艺的要求，提出了有关工艺及技术参数。
It has been designed and constructed with the Intersil High Frequency Bipolar Dielectric Isolation process and features dynamic parameters never before available from a truly differential device.
这已被设计与Intersil的高频双极电介质隔离工艺构造和特点，从一个以前从未真正差速器可用的动态参数。
It is researched the preparation of ceramic layer on the surface of M5 zirconium alloy by high-frequency induction oxidation process in active flow oxygen medium and in dry air.
在活性氧流动介质和干空气中，用高频感应氧化工艺在M5锆合金表面生成氧化锆陶瓷膜进行了研究。
The filter features high cut-off frequency and the fabrication process is compatible with MOS process.
该滤波器具有高截止频率、与MOS工艺兼容、便于单片集成等优点。
The result has dedicated that it could satisfy the process of PECM in high frequency, narrow pulse width and high-power.
实验结果表明，这种高频脉冲电源在高频、窄脉宽、大功率等方面均能满足该工艺的要求。
This paper analyzes safety and environmental hazards of traditional tubing cleaning, and introduces tubing cleaning process of high pressure with medium frequency and its effect.
分析了传统油管清洗工艺存在的安全环保隐患；介绍了中频高压清洗油管工艺流程及采用中频高压清洗油管工艺后的效果。
A modified frequency scaling algorithm to process the high squint spotlight SAR data is presented.
首先给出了一种改进的频率变标算法。
The paper presents the system design method and control process of applying frequency converter to realize water provision in constant pressure for high building.
本文介绍了用变频器实现高层建筑恒压供水的系统设计方法和控制过程。
Modulation is the process of loading the information to be delivered onto a certain(signal carrier) signal of high frequency.
调制是将要传送的信息装载到某一高频（载波）信号上去的过程。
Brazing quality and product reliability are both increased as using high frequency pulse microplasma arc heating process for assembly brazing of cathode and photoetching grid of electron tube.
采用高频脉冲微束等离子弧做为电子管阴极和光刻栅极装配钎焊工艺的热源，提高了钎缝质量和产品的可靠性。
This algorithm is based on high-order range model, which firstly corrects range walk in the process of range compression and then corrects range bending in two dimensional frequency domain.
该算法基于高阶距离模型，首先在距离压缩时校正距离走动，然后在两维频域校正距离弯曲。
The macroscopic measurement of high-frequency linear transport process does not destroy this interference effect.
高频线性输运系数的宏观测量不会破坏这种相位关联。
This control system retains the positive properties of conventional sliding mode control, which simplifies the process of design and solves the problem of high frequency shaking.
这种控制方式既保留了传统非线性变结构控制的优点，又简化了设计，解决了高频抖动的问题。
By extracting the multipulse excitations during voiced speech, and adding the excitations into the process equation the harmonic of high-frequency area can be reconstructed.
通过在浊音段提取多脉冲激励信号加入语音的状态方程，有效地重建语音的高频谐波。
This paper introduces the theory and design method of digital intermediate frequency receiver, and based on high speed DSP and FPGA establish hardware process platform.
介绍了一种数字中频接收机的原理与设计方法，并以高性能DSP、高速fpga为基础，搭建硬件处理平台。
Re melt deposit welding process is proposed in this paper. To realize the technology, plasma arc, TIG arc, high frequency induction, gas shield continuous stove and MSW are adopted.
提出熔敷焊接工艺方法，采用等离子弧、TIG电弧、高频感应、气保护连续炉、真空炉和模中熔铸工艺实现了熔敷焊接工艺方法。
The process that makes high wear-resistant alloy coating on hackle screens by means of high frequency induction build-up welding which improves the service lives over 2 times are introduces.
介绍了采用高频感应堆焊方法在梳齿筛网表面制备高耐磨合金层以提高其使用寿命2倍以上。
A major feature of this process is that it produces both PNP and NPN high frequency transistors which makes wide bandwidth designs, such as the HA-5033, practical.
这一过程的一个主要特点是，它同时生产PNP和NPN晶体管，这使得高频宽带设计，如在HA- 5033，实用。
Because the work frequency of the system is more high, anti-jamming measures is very important in PCB design. So many principles must be followed in the process of PCB design.
由于调制系统工作频率较高，PC B设计中的抗干扰措施尤为重要，因此在PC B设计中必须遵循一定设计原则。
Adopting high frequency radio wave to set fuze information on the outer trajectory, the information's anti-jamming in the setting process must be settled.
采用高频无线电波在外弹道上装定引信信息，必须解决信息在装定过程中的抗干扰。
The recognition and research of high-frequency dynamic snow-melting process in hinterlands of Tibet Plateau are insufficient due to the restriction of natural conditions and observation data.
受自然条件与观测数据的限制，青藏高原腹地高时间频次积雪融雪动态过程的认识与研究十分不足。
However, the millimeter-wave images are inherently blurred, and some high-frequency components are missed in the process of sampling or scanning.
但是目前毫米波图像存在着分辨率低，模糊，高频分量缺失的不足。
This paper introduces the technology of high frequency welded stainless steel tube production process. The adopted special methods countered the nature of stainless steel are discussed.
介绍了高频不锈纲焊管生产工艺流程，讨论了针对不锈钢特点所采取的工艺措施。
It was investigated that the short-cut process of producing high quality iron castings by duplex melting with blast furnace and medium frequency induction furnace.
分析了高炉中频炉双联熔炼短流程生产工艺的特点，采用液态金属状态测评系统研究短流程铁液状态。
应用推荐