查询词典 radio frequency

The use of Radio Frequency Identification system is a new application of recent development on data capture.

无线射频识别(radio frequency identification， RFID)系统的应用，是资料撷取领域最近出现的一项新的发展。

Vertically put the KAS detector on the upper part of the transmitter cover, turn EAS detector power supply switch on, EAS detector displays radio frequency output center frequency is: 8.2±0.05MHz; Adjust R15 (counterclockwise decrease, clockwise increase) can change radio frequency output center frequency.

把 EAS 检测仪垂直放置于发射机壳上部，按动 EAS 检测仪电源开关， EAS 检测仪显示射频输出中心频率为：8.2±0.05MHz ；调节 R15（反时针减少、顺时针增大）可改变射频输出中心频率。

The most efficient and most common circuit for radio-frequency selection and amplification used in radio receivers is the superheterodyne.

最高效率和多数最共同的电路为radio-frequency 选择和放大作用被使用在无线电接收机是超外差收音机。

To implement policies and regulations of national radio management, to draft local laws and regulations of radio management; to be in charge of the assignment and management of radio frequency resources according to the national plans; to examine and endorse allocation of addresses and usage of radios, to assign frequency and call letters, to issue the licenses for radio stations, to be in charge of collecting fees that concern radio management; to organize and direct the construction of wireless monitoring net and the monitoring work for electromagnetic environment, to organize and implement the supervision towards radio in accordance with the law, to maintain the order of electric wave in the sky, to be in charge of administrative enforcement of Law of radio management; to guide and supervise agencies of radio management, to undertake the foreign affairs of radio management.

贯彻执行国家无线电管理的政策、法规，起草无线电管理地方性法规和规章；依据国家规划，负责无线电频率资源的指配与管理；审批无线电台的地址设置和使用，指配频率和呼号，核发电台执照，负责无线电管理有关收费工作；组织指导无线电监测网建设及电磁环境监测工作，依法组织实施无线电管制，维护空中电波秩序，负责无线电管理行政执法；对无线电管理派出机构进行业务指导和监督，承办无线电管理涉外事宜。

The technology of Radio Frequency Identification has been recognized as one of the top 10 technologies in the 21st Century. This Paper is taking as from a Electro-Optical company's point of view, considering how RFID systems would, under most economical and effective conditions, establishes a partial miniature RFID systems within an enterprise yet still keeps the vertical upwards or downwards expansion mechanism.

中文摘要无线射频辨识系统（Radio Frequency IDentification，简称RFID）技术被公认为21世纪十大重要技术，本论文以一个光电公司的角度思考RFID系统如何在最经济与确保有效的状况下，在企业内建置一套局部小型的RFID系统，并保有可垂直向上与向下扩充的弹性机制。

The effect of endoscopic plasma radio-frequency therapy for gastrointestinal polyps is obvious and very safe, and bequite with high-frequency eletrosetion, plasma radio-frequency electrosetion could be used on special locations and excelled to the comparisonal group in therapic time,be good for clinical using as the preferred method to therapy for gastrointestinal polyps.Key words: polypus recti; endoscope; radio–frequency therapy; cutting

等离子射频技术应用于消化内镜下息肉切除，具有安全、疗效可靠，其疗效与高频电切相当，且能够在内镜反转状态针对胃底、直肠下段等特殊部位息肉实施有效切除，在术后愈合时间上明显优于对照组，可尝试作为内镜下切除消化道息肉的首选方法，对具有消化内镜诊疗条件的医疗机构，值得临床推广应用。

Objective To investigate the relationship among diameter of treated area,the expendable size of the ablation electrode, and number of overlapping ablations and to design the program for electrode placement by the ultrasound-guided radio-frequency ablation of large liver tumor.

目的 探讨超声引导射频消融(radio frequencyablation ，RFA)治疗肝肿瘤中治疗范围与射频针伞径、布针次数之间的关系，设计较准确的布针定点定位方法。

The radio frequency performance curves of relay were obtained through simulation, and analysis of the equivalent circuit and the main factors which influence the insertion loss, voltage stand wave ratio and isolation of relay were discussed.

对其进行仿真分析得到继电器射频(radio frequency，RF)性能曲线，并讨论了影响继电器插入损耗、电压驻波比及隔离度的主要因素。

However, RFID stands for Radio Frequency Identification, and is also called as Electronic Label. It goes through radio signals to identify specific targets, and reading and writing information, as well as don't need identity system and specific targets to create such as electronic, optics or machinery. Properties of wireless communication, space-penetrating, information tracking and real-time location system/ RTLS will apply for increasing the system capability of safety and protection to Robot.

而「RFID， Radio Frequency Identification 」称之为「无线射频识别」，又称「电子标签」，是一种通信技术，可透过无线电讯号识别特定目标并读写相关资料，而无需识别系统与特定目标即可建立含电子、光学或机械接触，其特性：无线通讯、空间穿透性、资讯历程可追踪与「即时定位系统 RTLS， Real Time Location System」等，必然将成为机器人、机械手臂安全设计与防护的新应用。

Radio Frequency Identification System BE make use of RF energy to deliver data,belong to a wireless communication technique,is 1 kind not the system of contact type,it constitutes the component contain the application system of the reader,electron label,Antenna,host computer, its induction method depends on passive type Tag with active type Tag distinguish analyse, can be divided into induction coupling and back scattering coupling and induced the coupling is the induction method (as 135 KHzs、13.56 MHzs) which belongs to low frequency、high frequency,the back scattering coupling is the induction method(as 915 MHzs、2.45 GHzs) which belongs to superhigh frequency,microwave, and what we construct apply system is use the high frequency 13.56 MHzs of induction coupling method.

中文摘要无线射频辨识系统(Radio Frequency Identification；RFID)是利用RF能量来传递资料，属於无线通讯技术，是一种非接触式的系统，其组成元件有读卡机、电子标签、天线、主电脑应用系统，其感应方式依被动式Tag和主动式Tag来区分，可分为感应耦合和反向散射耦合而感应耦合是属於低频、高频的感应方式(如135KHz、13.56MHz)，反向散射耦合是属於超高频、微波的感应方式(如915MHz、2.45GHz)，而我们所建构的应用系统是使用高频13.56MHz的感应耦合方式。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。