它们的工作原理是通过发出高频声波脉冲并将反馈的信息转变成图像，为了实现这一过程，你还需要一个叫做变频器的设备。
They work by sending out pulses of high-frequency sound and then interpreting the reflections as images. To do all this, though, you need a device called a transducer.
它们的工作原理是通过发出高频声波脉冲并将反馈的信息转变成图像，为了实现这一过程，你还需要一个叫做变频器的设备。
They work by sending out pulses of high-frequency sound and then interpreting the reflections as images.To do all this, though, you need a device called a transducer.
高频交易的基本原理是利用巧妙的算法与超高速计算机来侦测并利用市场的动向。
The basic idea of HFT is to use clever algorithms and super-fast computers to detect and exploit market movements.
其原理是电磁波耦合内部的极化因子并使之高频反转。
This principle is coupling of inner polarization factors with electromagnetic wave.
论述了高频电磁感应加热原理以及该技术在接装纸鼓轮加热中的实现。
The principle of high frequency electromagnetic induction heating and its application in cork drum heating were introduced.
简要介绍了德瑞克高频振动细筛的工作原理及其应用领域。
This article introduces the work principle and application field of the Derrick high frequency vibrating fine screen simply.
文中介绍了IGBT升压与降压式三相高频SPWM整流器的基本工作原理和控制方法。
This paper describes the basic working principles and control methods of three-phase high- frequency boost & buck IGBT SPWM rectifiers.
据此原理，可以设计小型、廉价、高效率、高频率自由电子激光器，它在技术上是可能实现的。
According to this principle, a miniature, inexpensive and effective free electron laser at high frequency may be designed. It is feasible in technology.
对放电高频脉冲检测原理的装置进行了分析，并在重庆电力公司江津供电局工程中进行了应用。
This paper will analyze the discharge high-frequency pulse theory and its application in JiangJin Power Supply Bureau's project.
提出了一种用于电动汽车的高频交流脉冲密度驱动系统并阐述了系统的工作原理和控制方法。
A novel drive system with high frequency AC pulse density modulation for electric vehicles is proposed, and its operation principle and control method are studied in detail.
本文叙述高频水声声压标准装置的原理、组成、性能和误差分析。
This paper describes the principle, construction, performance and error analysis of the standard apparatus for underwater sound pressure in high-frequency range.
论述了高频感应焊接的原理。
设计了一种高精度时间间隔测量模块，该模块由单片机控制，采用脉冲计数原理，通过测量时间间隔内高频参考时钟个数，得到被测时间间隔的精确值。
Based on pulse counting principle, the high precision time interval can be obtained by measuring the number of the high-frequency reference clock through it.
用途与简介：本机是利用电磁感应的原理，高频信号经放大由感应线圈输出。
Brief introduction: SWFL apply electromagn etic induction principle, and the amplified high frequency signal is put out through inductor .
本文对高频真空熔融气相色谱分析仪的测试原理、方法、结构、特点等方面进行了介绍和分析。
The principles, method of the analysis, structure and character of gas chromatographic instrument for vacuum melting furnace with high frequency are introduced and analysed in this paper.
简介几种常用电机调速方式。对应用较好的内反馈高频斩波调速技术的工作原理、功能与特点，以及在工业控制中的应用情况予以介绍。
The article mainly the speed governing technology with internal feedback high frequency chopper wave, including its working principle, function and feature, and application to Industry control.
提出了一种新颖的高频交流脉冲密度调制变频器的拓扑结构，并详细阐述了工作原理、控制方案和设计方法。
A novel topologic structure of high frequency AC pulse density modulation converter is proposed, and its operation principle, control scheme and design are described in detail.
从电流控制型电路原理、优点，UC 3845a的特点，提出了一个实用的高频开关电源。
This paper introduces the principle, advantages of the current control mode and the features of UC3845A.
本文介绍了用于快速中子反应堆安全监测的压电式高频传感器的原理、结构与试验结果。
The principle and structure of high frequency piezoelectric sensor for safe observation of fast fission reactor are introduced, and the testing results are presented.
提出了一种新颖的双向电流源高频链DC A C功率变换器的拓扑结构，并简要地阐述了其工作原理和控制方案。
A novel topology of high frequency link DC ac converter with bi directional flyback mode is proposed, and its operational principle and control strategy are introduced briefly.
本文叙述了高频氩放电离子气相色谱的工作原理、特点；以及在高纯氩气产品分析中的应用。
This paper described that the working theory and characteristics by high frequency argon discharge gas chromatograph, application of analysis cum in high purity argon product.
详细分析了电源系统和高频引弧电路的结构组成和工作原理。
The principle and structure of power supply and HF arc ignition circuit is analyzed in detail.
研究了高频电子印刷板的设计原理，并掌握了制作工艺。
Studying the craft and design of the PCB in high frequence signal system.
从高频电刀的原理入手，分析了高频电刀安全控制的要求，并对其安全性能指标及其检定方法作了介绍。
This paper describes the basic principle and the safety control requirements of a high-frequency electric knife, and then introduces the verification method of the safety control targets.
介绍了一种小型高频引弧器，分析了它的组成和工作原理。
A small high-frequency arc starter is introduced in this paper. Its component parts and working principles are analysed.
在分析传统引弧电路的基础上，提出了一种新型的高频引弧电路，并对其工作原理进行了分析。
A new kind of high frequency arc striking device was presented here based on the analysis of traditional arc striking circuits. The working principle of the device was analyzed.
本文介绍了超高频电容式水分传感器的设计和工作原理。
Working principle and designing of a super high frequency capacitance sensor are introduced in this article.
利用红外测温原理，研制出高频热处理时的小目标非接触式在线动态监控淬火件温度的装置。
Using infrared system the apparatus of non-touching at limited-area to monitor the hardening temperature at site is produced for high-frequency induction heat treatment.
利用红外测温原理，研制出高频热处理时的小目标非接触式在线动态监控淬火件温度的装置。
Using infrared system the apparatus of non-touching at limited-area to monitor the hardening temperature at site is produced for high-frequency induction heat treatment.
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