中频

So the bass and some of the midrange of the signal flows in an electrolytic capacitor, period.

它不管低频，经常也不管中频，所以低频和中频的一部分是通过电解电容的。就是这样。

Based on the principle and characteristics of medium frequency furnace, analysis on physical and chemical performance of liner material , better technological economic indexes and benefits of adaptation to 2 tons medium frequemcy furnace for resmelting high carbon ferrochrome are realizde by pilot production and industrialized production.

采用2 t中频炉重熔高碳铬铁，根据中频炉的原理及特点，对炉衬材料的物化性能进行了分析，通过试生产和工业化生产，取得了较好的技术经济指标和经济效益。

The phase truncation noise was found to be related to the intermediate frequency sampling rate.

通过研究数控振荡器中相位舍位噪声的规律，得到了该噪声与数字中频采样率的关系，提出了基于减小相位舍位噪声的中频采样率优化方案。

Melting adopted from German Junker 5-ton double furnace double electric supply medium frequency induction furnace, 15-ton double furnace double electric supply medium frequency induction holding furnace, 2sets of 8-ton per hour water cold continuously melting cupola .

熔化采用德国容克公司5吨双炉体双供电中频感应熔炼炉，15吨双炉体双供电中频感应保温炉，两台8吨/小时水冷连续熔化冲天炉；混砂采用德国爱立许砂处理系统，处理能力每小时可达160吨；制芯采用德国兰佩F40数控热芯盒射芯机、F40数控冷芯盒射芯机，适应各种缸盖、缸体、飞轮、排气歧管等制芯。

The noise frequency modulation signal was particularly analyzed. The Fokker-Planck equation of noise frequency modulation was presented and the Motion-Group Fourier Transform was used by converting the partial differential equation into the variable coefficient homogenous linear differential equations. Then the solutions were given by using the peano-baker series. So the probability density function of noise frequency modulation in the filter was given. On the basis of the probability density function the stochastic resonance of noise frequency modulation signal is analyzed.

首先建立了噪声调频干扰信号通过脉冲压缩雷达中频滤波器后所满足的福克尔－普朗克方程，然后利用群移傅立叶变换（Motion-Group Fourier Transform，MGFT）将此偏微分方程化成了变系数齐次线性微分方程组，并利用Peano-Baker级数法给出了该方程组的解，最后得到了噪声调频干扰信号通过脉冲压缩雷达中频滤波器后的概率密度函数，在此基础上研究了噪声调频干扰信号造成的随机共振现象。

The correlation detection using the periodicity of the direct sequence autocorrelation function can estimate the symbol period at intermediate frequency or at baseband. Simulation results indicate that the former is superior to the latter when the demodulated frequency is unequal to the carrier frequency.

时域相关检测方法利用扩频信号的周期自相关特性，能在中频和基带对扩频码周期进行估计，仿真结果表明中频检测时性能较好。

Simultaneous heating and quenching with high power medium frequency equipment for parts of long shaft,adopting special induction coil and adjustable induction coil and self tempering ,will improve on medium frequency quenching quality of the parts and raise obviously productivity,thereby cause the enterprise to obtain fine product quality,high productivity and Low production cost.

对长轴类零件采用大功率中频机同时加热表面淬火的方法，配以专用感应圈和伸缩感应圈的应用和自回火的应用，结果表明，可提高零件中频表面淬火质量，并大大提高生产效率，从而使企业在生产中取得高产品质量，高生产效率和低生产成本的极佳效果。

This paper first reviewes the development history of receiver from simple to complex process, and compares with the characteristic of superheterodyne receiver,digital IF receiver and homodyne receiver.

本论文首先对无线电接收机从简单到复杂的过程回顾了接收机的发展历史，对超外差、数字中频和零中频接收机的特性进行了比较。

Some kinds of the typical WLAN chipsets, such as superheterodyne, zero-IF receiver , low-IF receiver and so on, are introduced in the paper.

2本文介绍目前在国际上流行的几种典型的 WLAN 芯片组，如超外差式、零中频接收器和低中频接收器等。

They are advocates of green environmental protection energy-saving power supply, has been formed are: crystal-like medium, high, ultra-high frequency induction heating machine, high frequency quenching machine, high-frequency annealing machine, IF forging furnace, medium frequency melting furnace, high-frequency brazing welding machine, such as a series of high-tech products.

他们正在倡导绿色环保节能电源，目前已形成有：晶体式的中、高、超高频感应加热机，高频淬火机床，高频退火机，中频锻造炉，中频熔炼炉，高频钎焊机等一系列的高新技术产品。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。