The pure quartz lump becomes quartz tube via untouched technology of intermediate frequency induction heating.
采用中频感应加热无接触技术，将石英净坨拉制成为石英管。
Conventional dual up-conversion transmitter usually employs an intermediate frequency (IF) mixer and a radio frequency (RF) mixer to convert baseband user signal to IF and RF in sequence.
传统双上变频发射器通常采用中频(IF)混合器和射频(RF)混合器将基带用户信号依次转换成IF和RF。
Finally the fruit of research for my master degree presents in the way of actual de-hopping and digital intermediate frequency receivers that have passed the examination.
最终以通过检测的跳频解跳与数字中频接收机的实物作为硕士期间的研究成果呈现。
In an array consists of 27 combination vibrators, a strong coupling mode of axial and radial vibrations presents in the intermediate frequency range.
在由27个组合振子构成的阵列中。居间频率范围内出现一个轴向和径向的强烈耦合模。
As a key private enterprise specialized in manufacturing intermediate and high frequency smelting equipments as well as equipments of thermal treatment, Zhuzhou Huaneng Technology Co.
株洲华能科技有限公司是一家以生产中、高频熔炼及热处理设备为主的民营骨干企业。
In order to decrease the mirror frequency interference, cross interference and inter-modulation interference, double IF (Intermediate frequency) is adopted in the receiver.
为了降低镜频干扰、交调和互调干扰，接收机采用了双中频方案。
Intermediate frequency instability has had the most uneven history.
中频不稳定性的研究经历了极为曲折的道路。
The system design method proposed by the paper examines the frequency tracking accuracy of the frequency agile radar synthesis detection unit at intermediate frequency.
本文提出了通过系统设计的方法将频率捷变雷达综合测试仪频率跟踪精度的检定在中频进行。
The paper introduces some experience in anti-interference for design and parallel operation of small intermediate frequency three-phase synchronous generator with active load.
本文介绍了带有源负载时，小型三相同步中频发电机的设计和并联运行时抗干扰方面的一些经验。
And the application in intermediate frequency digital receiver proves this software system's efficiency and dependability.
在中频数字接收系统中的应用验证了此软件系统的效率和可靠性。
In the process of signal digital intermediate-frequency received, digital down convertion, frequency tracking of carrier and phase locked loop are the keys.
在信号的中频数字接收过程中，数字下变频、载波频率与相位跟踪是设计的关键所在。
Low or intermediate frequency combustion instability generally involves the interaction of several components of an engine system.
低频或中频燃烧不稳定性通常包含发动机系统中几个组件的相互作用。
The example by quenching to intermediate frequency is analysed, advantage having ascertained mill roller intermediate frequency quenching.
通过对中频淬火的实例分析，确定了轧钢机轧辊中频淬火的优势。
In high power laser system, a small size phase-distortion wavefront measure is necessary to compensate and control the wavefront of laser beam with intermediate frequency.
在高功率激光系统，激光束小尺度相位畸变波前探测是实现激光束中频段波前补偿与控制的重要前提。
The three dimensional non linear finite element analysis of the transient temperature field during intermediate frequency quenching of diesel crankshaft was simulated by using of ANSYS.
利用ANSYS有限元分析软件，采用三维非线性有限元方法对柴油机曲轴中频淬火瞬态温度场进行了模拟计算；
On the basis of software radio, a mathematics model about DSSS receiver is described, and a realization diagram of wide_scope intermediate frequency sampling DSSS receiver is builded.
基于软件无线电的思想，论述了直接序列扩频接收机的数学模型，进而建立了一个宽带中频采样直扩系统接收机的实现框图。
Low and intermediate frequency instability models are taken up first.
首先处理低频和中频不稳定性的模型。
Combined with the features of virtual instrument, the scheme realizing virtual RF spectrum analyzer is presented and realized in this paper, and digital intermediate frequency method is emphasized.
结合虚拟仪器的特点，提出并实现了一种虚拟射频频谱仪的方案，着重介绍了其中的中频数字化实现方法。
This paper introduces the theory and design method of digital intermediate frequency receiver, and based on high speed DSP and FPGA establish hardware process platform.
介绍了一种数字中频接收机的原理与设计方法，并以高性能DSP、高速fpga为基础，搭建硬件处理平台。
The key component of the system is a digital intermediate frequency receiver employing DSP and FPGA to obtain amplitude and phase data in real-time, which improves measurement speed and flexibility.
该系统的关键部件是一个数字中频接收机，利用DSP和FPGA实时获取幅度和相位数据，从而提高了测量速度和灵活性。
The common breakdown and its removal of the rectifier circuits and inverse transforming circuits in intermediate frequency induction electric furnace for thyristor are introduced.
介绍了在可控硅中频感应电炉中整流电路和逆变电路的常见故障及其排除方法。
Narrow band intermediate frequency digital receiver has been widely used in radar EW reconnaissance. At present, the high speed signal processing is the key point of its researching.
窄带中频数字接收机在雷达对抗侦察中得到了广泛应用，其高速信号处理技术是目前研究的重点。
This study analyzed on stride and stride frequency at intermediate running about excellent sprinters in China by the way of the high rapid photography and analysis the film.
本文采用高速摄影和影片解析的方法，对我国优秀男子短跑运动员途中跑步频、步幅诸因素进行分析。
Methods 107 cases with scapulohumeral periarthritis were treated by modulation random intermediate frequency current.
方法采用调制随机中频电流机治疗肩周炎患者107例。
The system uses the method of orthogonal double-channel zero intermediate-frequency, and the result is satisfying.
该系统通过采用正交双通道零中频处理量化相位，处理效果较佳。
A feasible digital intermediate frequency receiver based on software radio technology is presented in this paper.
基于软件无线电思想介绍了一种可行的中频数字化接收机系统设计方案。
While the Digital Intermediate Frequency technology is one of the pivotal technology in the wireless base station system.
而数字中频技术是无线基站传输系统中的关键技术之一。
Computerized Intermediate Frequency therapy Apparatus is one of the most useful electrotherapy units in clinical.
电脑中频治疗仪是一种在临床被广泛应用的电子康复治疗设备。
In polycrystalline samples, the intermediate-frequency mechanism is interpreted as the grain-boundary conduction mechanism.
而矿物多晶中间频率段的导电机制由颗粒边界所引起。
Introduce the work principle of the cold roller about two frequency quenching device and intermediate frequency system, the method of debugging and valuable experience.
介绍了冷轧辊双频淬火装置中频系统的工作原理、调试方法和宝贵经验。
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