查询词典 RF

Suit for 3M,SONY,NITTO,TEST,PORONand other specially adhesive tape,and LED,LCD,reflection of light membrane(RW-100,RW-50,RF-188),diffused light membrane(Japan prince:90,75,60D204,D105,DB642,CH19),provide against the static electricity resist membrane,black and white double-faced gum,not seep through the glossy aluminum foil,adds to the light of the membrane,radium ray paper and so on.

适用于3M，SONY，NITTO，TEST，PORON等特殊胶带成型，以及LED，LCD背光源，反光膜(RW-100\RW-50\RF-188)，防静电保护膜，黑白双面胶，不透光铝箔，增光膜，镭射纸等的成型。

Beijing BED Tech-Trade Development Co Ltd is a high-tech joint-stock enterprise which has been engaged in the research, manufacture trade of the rf high power dummy load power meters, attenuators terminations.

北京贝尔德科技有限责任公司是一家集科研、生产、贸易为一体的高科技股份制企业。从事《BED》为品牌的全系列负载功率计，及射频微带系列电阻、负载、衰减器件等产品的开发、生产。

The equal distance 3-improved-coverage number of beacon sending position is presented according the acreage of ROI.Then a simple method is put forward to calculate the coordinates of the sending positions in rectangular ROI.Aiming at the shortage of the existent sequence algorithm,when beacon moves according to the path and emits RF signals at every position,the ant colony algorithm is applied to the position sequence so as to get the beacon sending position.Further,in this algorithm the sensors could work out their position with trilateration.

根据ROI面积给出了等距三重优化覆盖此ROI所需要的信标发射位置数量计算方法；随后对矩形ROI提出了一种简单的信标发射位置确定方法；针对现有的遍历发射位置点的路径遍历算法的不足，提出了一种新的应用蚁群算法的信标发射位置点的遍历算法，并利用该算法对基于三边测量方法进行传感器节点定位。

The algorithm uses the RF packet only to obtain the distance differences between unknown node and beacon nodes. Then the algorithm figure out the node"s coordinates by the improved trilateration to implement the long distance, controllable accuracy, low-cost localization. Second, this paper proposes a distributed Kalman algorithm to optimize the TDOA"s error.

算法的基本思路是直接利用无线通信模块的射频分组求得未知节点到各个信标节点的距离之差，然后利用改进型的三边定位法计算出节点的坐标，对节点实施远距离、精度可控、低成本的定位。

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 Rf value of the glucosamine sulfate was 0.36 measured by paper chromatography with the solvent system of pyridine, ethyl acetate, water and glacial acetic acid (5:5:3:1 in volume).

经纸层析鉴定，以吡啶、乙酸乙酯、水和冰醋酸按体积比5：5：3：l组成的溶剂系统进行展层，氨基葡萄糖硫酸盐的Rf值为0.36。

In this experiment, we finally found that the DC reliability parameters are lack and can not fit and present the RF reliability degradations.

并且在实验的过程中，我们发现一般直流劣化的参数并不足以提供和代表高频操作下规格劣化的指标。

Diplexers, a sort of three-port filter, can separate different band of frequency, and are the key component in the RF communication system.

双工器是一种三端口滤波器，起到分频和隔离的作用，是射频通信中常用的关键性器件。

Project areas may include waveguide components and subassemblies used in the RF path between a microwave transceiver and the antenna, such as diplexers, filters and couplers

项目范围可能包括用在微波收发器和天线间通道的波导管组合件和部件，比如双工器、滤波器和耦合器

Our company's productline was developed from microwave ferrite devices to all of the RF passive components, Product suite includes diplexers, filters, Combiner, Splitter, coupling devices, isolator, circulator and POI frequency devices.

公司的产品也从单纯的微波铁氧体器件发展到几乎涵盖所有的射频无源器件。产品包括双工器，滤波器，合路器，功分器，藕合器，隔离器，环行器及POI等射频无源器件和组件

Great. What repertoire did you see?

太棒了。你看的是什么剧目？

I prepared not to accept such ridiculousness:"Please," I said to him.

我可不想理会这套荒谬的东西："请你通情达理一点儿。"