Echolocation is the use of ultra-high frequency sounds for navigation.
回声定位是用超高频率的声音来导航。
GIS partial discharge; ultrasonic detection; ultra-high frequency detection.
GIS局部放电；超声波检测法；超高频检测法。
Methods: 3643 patients of skin lesion with pigment have been treated by ultra-high frequency skin plastic operation.
方法：应用超高频皮肤整形术对3643例色素性皮肤病变进行治疗。
This paper analyzes the concept, working principle and internal structure of passive RFID tags. At last introduces the structure of ultra-high frequency (UHF) RFID tags.
本文分析了无源rfid标签的概念、工作原理和内部结构，在文章的最后还对超高频(UHF) RFID标签的结构进行了介绍。
Partial discharge(PD)in GIS could be detected efficiently with its frequency characteristics, because of a lot ultra-high frequency composition in GIS partial discharge signal.
GIS局部放电脉冲含有较为丰富的超高频信号成分，利用GIS局部放电产生的高频辐射特性可以有效地检测GIS局部放电。
Based on the conventional Class-E resonant high-frequency power amplifier, a new control scheme used in Active-clamped Class-E inverter for ultra-high frequency induction heating is proposed.
以传统的E类高频功率放大电路为基础，提出了应用于高频感应加热电源的有源箝位E类逆变电源的一种新型控制方法。
MUOS will augment and replace the legacy Ultra High Frequency (UHF) Follow-On system (UFO) providing assured communications, including simultaneous voice, video and data, for mobile warfighters.
MUOS将扩展和取代传统的超高频(UHF)后续通信卫星(ufo)，为移动士兵提供通信保障，包括同步语音、视频和数据。
They also believe that it would be no great loss if the tax drives away "high-frequency traders", ultra-fast automated traders whose margins are razor-thin.
他们也相信，如果这一税收赶走了“高频交易员”——那些超快的自动化交易员，他们的利润率极其微弱——也不会有什么大损失。
Various frequencies such as Low Frequency, High Frequency, Ultra Frequency and Microwave, which are available to RFID, have different properties.
在RFID可以利用的低频、高频、超高频、微波等各个频率中，各种频率都是具有不同的特点。
Ultra high voltage + Ultra high frequency + Ultra high pulse: Please choose Amazing Capacitor.
超高电压+超高频率+超高脉冲：就选美志电容。
The principles of detection technique and it's application to detect PD signals at ultra-high-frequency(UHF) are introduced.
介绍了检波原理及其在超高频（UHF）局放检测中的应用。
In terms of operation frequency, RFID systems can be divided into four categories: low frequency (LF), high frequency (HF), ultra high frequency (UHF), and microwave.
根据工作频率来分，RFID系统可以分为低频，高频，超高频和微波四个波段。
The principles of frequency mixing technique and its application to detect PD signals at ultra high frequency (UHF) are introduced in this paper.
介绍了混频技术的原理及其在超高频局部放电信号提取中的应用。
The system uses the emitter to send ultra high frequency signals after coding with signal coder and the secondary superheterodyne mixing receiver to accept the moving target signals.
系统中发射器采用编码器编码后发送超高频信号，接收器采用二次混频型超外差式接收移动目标信号。
A quadrature down-conversion mixer based on this topology is designed and optimized for an ultra high frequency RFID reader.
设计并优化了一个基于共用跨导级结构的用于超高频rfid阅读器的正交下变频混频器。
The ultra high frequency RFID technology of this system is more advanced than other technologies from the aspect of operation and veracity.
此系统所采用的超高频RFID技术，从操作上和准确性上来讲，都较其它技术大为提高。
The ultra-high-frequency(UHF) method has been proved an effective way for the measurement of partial discharge in GIS.
对于GIS局部放电的测量，超高频法是一种较为有效的方法。
The combination of frequency modulated continuous wave(FMCW)technology and synthetic aperture radar(SAR)techniques is often used to obtain ultra-high resolution.
运动补偿问题是制约机载调频连续波合成孔径雷达（FMCWSAR）实现超高分辨率成像的瓶颈。
It employs ultra high frequency sound waves to form television images of internal organs.
它使用超高频率的声波来形成内部器官的电视图像。
The rational harmonic mode-locking has become a research subject of intense interest due to its application on the generation of ultra- high repetition frequency optical pulse train.
有理数谐波锁模技术是产生高速超短脉冲的重要技术之一，其光时分复用通信技术等领域中有重要的应用价值。
In the ultra high frequency system, the frequency compounder section of the transmitting frequency is operated with DDS/PLL technology.
在甚高频系统中，射频的的频率合成器部分采用DDS/PLL技术。
Patrol management system is composed of ultra high frequency wireless IC tag, special patrol handset, management computer and system software and patrol management database.
巡视管理系统由超高频无源电子标签、专用巡检手持器、管理计算机及系统软件和巡视管理数据库构成。
And ultra high frequency time series is tick-by-tick data, which contain plenty of market information.
而超高频时间序列是市场上每笔交易的实时数据，其中包含了丰富的市场信息。
The experimental results show that the receiver has characteristics of ultra-low noise, high gain and good frequency response, which satisfies the requirements of the 3mmW LFMCW radar system.
实验结果表明，该接收机具有超低噪声、高增益和好的频率响应特性，可满足三毫米波LFMCW雷达系统应用的需要。
Dingxin Zhuzhou Electric equipment Co., Ltd. is engaged in the design, production frequency, high-frequency, and ultra-audio frequency induction heating equipment, specialized high-tech enterprises.
株洲鼎鑫电热设备有限公司是从事设计、生产中频、高频、超音频及工频感应加热设备的专业化高科技企业。
Dingxin Zhuzhou Electric equipment Co., Ltd. is engaged in the design, production frequency, high-frequency, and ultra-audio frequency induction heating equipment, specialized high-tech enterprises.
株洲鼎鑫电热设备有限公司是从事设计、生产中频、高频、超音频及工频感应加热设备的专业化高科技企业。
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