查询词典 radio frequency

EPL only monopole radio frequency produces controllable depth monopole radio frequency by the electromagnetic field vicinity in skin fibre may tighten up the dermis and the hypoderm room tier, the maximum temperature is located in skin underneath under making monopole irradiate several millimeters, the cuticle is not good in by the comfort scalding , curing safety.

EPL独有的单极射频通过电磁场在皮肤的周围产生深度可控的单极射频场，可收紧真皮和皮下组织间的纤维层，使单极照射下最高温度位于皮肤下面几毫米，表皮不会被烫伤，治疗安全舒适。

This kind of architecture, however, accompanies with some radio frequency imperfections such as the direct current offset, frequency offset, inphase/quadrature imbalance, and etc. In this thesis, it focuses on the topic of the RF impairment of frequency dependent I/Q imbalance.

但是，这种架构会一起伴随著一些射频的不完美效应，像是直流电偏移，频率偏移，以及I/Q不平衡效应等等…在这篇论文中，主要是研究频率相依的I/Q不平衡效应。

6800G Blu-ray version of the wireless kit is a colorful Technology recently recommended a new suite of wireless power, using zero-latency 2.4GHZ radio frequency technology, can receive information from up to 10 meters; 16 radio channels, can be automatically frequency-hopping; keyboard with full - The new ultra-thin keycap, laser character, mute better effect, and the permanent lossless.

多彩科技是国内著名的外设厂商，商品性价比非常高。6800G蓝光版无线套件是多彩科技近期全新推荐的一款无线省电套件，采用零延迟2.4GHZ无线射频科技，接收距离可达10米；16个无线频道，可自动跳频；键盘采用全新超薄键帽，镭射字符，静音效果更佳，且永久不掉字。

After analyzed RFID and NFC technology, they are considered as radio frequency communication and listed up some examples of other radio frequency.

本文在分析射频识别和近场通信的基础上，指出它们同属射频通信，而且列举了射频通信的其他技术。

Because the traditional wireless microphone uses the frequency low silent chain, all is analyzes the radio-frequency signal the intensity, therefore they cannot and need the noise the signal differentiates; In the noisy radio frequency environment (for example digital equipment and so on CD/VCD/LD send out massive overtones) under use, when this launcher signal weak or closure, the silent chain possibly can open suddenly, the receiver can send out the intense demolition noise.

传统无线麦克风因采用频率低的静噪电路，都是分析射频信号的强度，所以它们不能把噪音和需要的信号区分开来；在嘈杂的射频环境(如CD/VCD/LD等数码设备散发出的大量谐波)下使用，在该发射器的信号微弱或关闭时，静噪电路可能会忽然打开，接收机就会发出强烈的爆破噪声。

It is made up of a guide needle (11) which houses two or more active radio-frequency wires (14, 15) connected at their proximal end to a radio-frequency generator and each one having a spiraled, helicoidal or spiral, distal segment 14'.

其由引导针(11)构成，该引导针藏有两根或更多活动射频导线(14、15)，该导线在其近端连接到射频发生器，并且每根导线具有绕成螺旋的、漩涡状的或螺旋状的远端段(14′、15′)。

Based on the requisition of wireless system debugging, this paper develops a novel radio-frequency beaconing. Design method and system constitution of a novel beaconing based on PLL IC PE3336 are given, and the accomplish method of the system's hardware and software arc expounded. The test results show that the beaconing adopted in this method has a reliable and stable frequency conversion features. The more applications in the wireless system find that the users can set necessary frequency conveniently. Especial1, the friendly man-machine interface makes the operation is more flexible. It is as excellent performance-price-ratio beaconing, and as a signal source, it can be used in the research and the debug procession of variable radio-frequency components.

根据无线电数据链系统及部件的调试需要，研制开发了一种新型的以锁相环为核心、由单片机控制的射频信标机；文中给出了基于锁相环芯片PE3336的新型信标机的设计方法与系统组成，阐述了系统硬件及软件的具体实现为法；测试结果表明，利用该方法设计的信标机具有稳定、可靠的变频特性，且各项指标均达到了要求；进一步在某无线电系统中的应用发现，用户可方便地设置所需频点；特别是友好的人机界面，使用户操作更为灵活方便，是一种性能价格比优良的信标机；并可作为信源用于不同的射频部件研制与调试过程中。

In wireless broadband digital communication, Inter-Symbol Interference caused by time disperse of radio channel is one of main factors that limit bandwidth of communicated information and system performance of communication. In receiver, Orthogonal Frequency Division Multiplexing system can easily cancel ISI and equalize frequency-selective fadings that are both caused by time disperse of radio channel.

在这一系统中，无线信道时延扩展引起的符号间干扰是限制传输性能和信息速率的主要因素之一；而在消除符号间干扰和均衡由无线信道时延扩展引起的频率选择性衰落方面，正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术具有明显优势。

Japan and Korea of the respondents unequivocal inventory management will be a radio frequency identification technology's biggest gainers in two countries accounted for 88% and 92% of the respondents will inventory management as the implementation of radio frequency identification technology.

日本及韩国的被访者明确认为库存管理将是无线射频识别技术的最大获益者，两国中分别有88%和92%的被调查者将库存管理作为实施无线射频识别技术的首选。

Communication ; data ; radio frequency system/radio frequency identification ; reader ; electronic tag ; binary search algorithm

通信； 数据；射频系统/射频识别；读写器；电子标签；二进制搜索算法

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。