查询词典 class frequency

Has been produced by 'WH' series of new, ultra-high frequency, high frequency, ultra-audio frequency induction heating equipment.

现已生产的'WH'系列新型超高频、高频、超音频感应加热设备。

At present, the Legend main customers for the provision of various types of RFID gain ratio the high efficacy of microwave paragraph (2.4G frequency) reader, as well as independent research and development Legend of international general agreement to support a variety of ultra-high frequency tags ( 860-915MHZ frequency) RFID read professional adjustable head.

目前，凌讯公司主要为RFID客户提供各类增益比的高功效微波段（2.4G频率）读写器以及凌讯自主研发的可支持多种国际通用协议标签的超高频段（860-915MHZ频率）可调的专业RFID读头。

Based on the special design requirements of high frequency circuits in communication systems, the simulations of the process flow and physical characteristics of small-scale (the base width is under 100 nm),ultra-high frequency(the characteristic frequency is upon 15 GHz) bipolar transistors were simulated.

基于通信系统中射频电路设计的特殊要求，对小尺寸(基区宽度低于100nm)、超高频(特征频率高于15GHz)双极晶体管工艺制程和器件的物理特性进行了模拟，为工艺线流片进行可行性研究。

This measurement frequency using direct comparison of the phase relation is a new important method to probe into the accurate measurement of the ultrahigh frequency like the optical frequency.

这种利用相位关系直接比对测频是探索光频等超高频率准确测量的一种重要的新方法。

Is a high-tech enterprise in Henan Province, China Heat Treatment Association, relying on university scientific research strength, the basis of modern power electronics theory, with Zhengzhou University Motorcycle Factory United attachment to the strict requirements of the production process of "X" series new frequency, high frequency, ultrahigh frequency induction heating equipment, the main circuit using IGBT, MOSFET and other new types of power devices, to integrated, modular, as the basic characteristic of independent innovation with new output transformer, equipment greatly enhance the power, energy consumption significantly reduced, the reliability of the maintenance-free development, and by domestic users widely welcomed and has been exported to Southeast Asia and the European Union and many other countries and regions.

郑州科创电子有限公司是河南省高新技术企业、中国热处理协会会员，依托高校科研实力，依据现代电力电子理论，与郑州大学摩托车附件厂联合，以严格的工艺要求生产的"X"系列新型中频、高频、超高频感应加热设备，主电路采用IGBT、MOSFET等新型功率器件，以集成化、模块化为基本特征，配以自主创新的新型输出变压器，设备功率大幅度提升，能耗大幅度降低，可靠性向免维护发展，受到国内用户的广泛欢迎，并已出口到东南亚及欧盟等众多国家和地区。

Ciliary beat frequency was measured by digital high-speed microscope. results ciliary beat frequency of cultured human nasal epithelial cells is 10.39±1.80 hz at 25℃. ciliary beat frequency of different cilia is equal on the same cell,it is also equal from uncinate process and inferior turbinate.

结果 在25℃，体外培养的人鼻腔黏膜纤毛摆动频率是10.39±1.80hz；同一细胞任意两点纤毛摆动频率是相同的；同一来源的体外培养的钩突和下鼻甲的纤毛摆动频率是相同的。

This paper designed and made moisture content meters of both high frequency and low frequency with frequency demodulation as its principle, chip as its measuring material and uniplanar scattering-field capacitor as its sensor.

本论文分别设计并自制了以调频法为原理、以刨花为测量介质，以同面散射场电容器为测量传感器的高频含水率测试仪和低频含水率测试仪。

The method of equal accuracy frequency measure can remove the errors of unitage and keep the high accuracy constant in the whole measure frequency segment. So the signal frequency has measured is high or low can't influence its accuracy.

等精度频率测量方法消除了量化误差，可以在整个测试频段内保持高精度不变，其精度不会因被测信号频率的高低而发生变化。

Its software uses system self-detecting algorithm to assure measurement channel .It uses softening hardware technique software synchronic data sampling to trace the frequency of exterior signal, in other words , it gives sampling control signals 128 times of power net's frequency .It uses Direct Digital Frequency Synthetics algorithm to transform radical sine waveform parameter table into needed current. It uses FFT algorithm to get radical waveform altitude of current ,voltage and resistor .

整个系统在软件设计上采用系统自检验算法保证测量通道可用，采用硬件软化技术--软件锁相环技术，达到对外部信号频率的跟踪，给出频率为电网工频128倍的采样控制信号：直接数字频率合成技术将基波参数表转换成需要的电流信号，采用FFT变换及基波幅度的计算方法得到被测电流、电压基波幅度和电阻大小。

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。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。