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复杂振动分解为振幅不同和频率不同的简单的振动，它们的幅值按频率排列的图形叫做频谱。广泛应用在声学、光学和无线电技术等方面。

• This relation between the frequency and the field spectra was noted experimentally.

  实验上已经发现频率和场频谱之间的这种关系.

• First of all there are the remarkable achievements of a molecular radio spectroscopy in these clouds.

  首先应说到的是分子射电频谱学研究这些云所取得的显著成就.

• Natural spectral peaks of the vocal tract that aid in the recognition of speech sounds.

  声道的自然频谱峰值,帮助语音识别.

• Experimental configurations for measuring and displaying these spectra are sketched in Figure 13.7.

  测量和显示这几种频谱的实验装置见图13.7.

• Non - Periodical Time Function Consists of Time Harmonics with Continuous Frequency Spectrum.

  非周期时变由连续频谱之弦波所构成.

• OFDM system tends to damage the orthogonality for ICI.

  OFDM的频谱正交性容易受到ICI的影响被破坏.

• The radio spectrum used in narrowband Personal Communications Services ( PCS ).

  用于窄带个人通信业务 ( PCS ) 的无线频谱.

• It means that the spectrum will decrease with the drain - source voltage.

  这意味着干扰频谱幅值随漏源极电压的降低而降低.

• You then turn on the modulation , thereby spreading the spectrum.

  然后,开始调制, 传播频谱.

• Optical amplifiers - Test methods - Part 5 - 2 : Reflectance parameters; Electrical spectrum analyser method.

  光学放大器.试验方法. 第 5-2 部分: 反射参数. 电频谱分析仪法.

• The frequency chart of damaged structure, which also obeys normal distribution , descends.

  损伤后结构的频谱下移, 且结构的频谱也符合正态分布.

• Cole - Cole model and Brown model of spectrum induced polarization are introduced.

  介绍了频谱激电法中的ColeCole模型和Brown模型.

• The bandwidth ( megahertz ) and spectrum position of the signal arising from television scanning.

  电视扫描信号所占的频谱位置和带宽 ( 以兆赫计 ).

• Finally, this paper introduce the assemble of intelligent controls - oriented virtual instrument.

  本文最后介绍了智能控件化频谱分析仪的组装.

• Spectrum offer a large range of output and printing services from Office.

  频谱提供了大范围的输出和印刷服务的职务.