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汉语拼音：zhōng pín

1.高于低频﹑低于高频的电磁振荡，其范围一般是10－550千周。在超外差式收音机中，由收音机本身产生的振荡和接收到的高频混合而取得中频。

1. 高于低频、低于高频的电磁振荡，其范围一般是10－550千周。在超外差式收音机中，由收音机本身产生的振荡和接收到的高频混合而取得中频。

• 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.

• Typically caused by mid frequency distortions in an analog system.

  在模拟系统中通常是由中频信号的失真所引起.

• Medium - frequency power supply has been widely used in industrial heating.

  中频电源已广泛应用于工业加热领域.

• The paper introduced the basic prinple of filtering harmonic voltage.

  本文介绍了中频谐波电压滤除的基本原理.

• In chapter 4, a IF receiver sub - system has been designed.

  第4章描述了中频子系统的设计与实现.

• A novel DGS lowpass filter is used to purify IF signal.

  中频引出通过新颖的DGS低通滤波器滤波后输出.

• Purpose: High frequency amplifier applications, FM, RF , MIX , IF amplifier applications.

  用途: 用于高频放大, 调频 、 射频、混频 、 中频放大.

• On the same conditions , the device begin to saturate when IF power reaches ? 5 dBm.

  中频输入功率大约在-5dBm时开始进入饱和状态.

• In this paper, the principle of RF - sampling frequency down - converter is discussed.

  本文讨论了射频 - 中频取样下变频器的原理,给出了选取重要的取样频率的方法.

• So watermarking are embedded into the middle frequency coefficients with different strength.

  从而水印图像信息分别以不同的强度嵌入到各中频系数中.

• Using this method, the piece quality is and can get good benefit.

  应用中频感应加热炉工件质量好,节约资金.

• Sub harmonic SPWM modulation is often used for medium frequency inverters.

  常用的中频逆变器通常采用传统的SPWM调制策略.

• Introduce a software - based radio thinking FDMA digital IF receiver system design.

  介绍了一种基于软件无线电思想的频分多址中频数字化接收机系统设计方案.

• The IF module consists of low - pass filter, buffer and variable gain amplifer.

  中频模块由低通滤波器 、 缓冲器和可变增益放大器组成.

• The company successfully developed a fully automated MF 800 T hydraulic pipe bender.

  公司成功研制了800吨全自动化中频液压弯管机.