band of frequency
英 [bænd ɒv ˈfriːkwənsi]
美 [bænd əv ˈfriːkwənsi]
网络 频段
双语例句
- The result shows that the power of 8. 0 frequency band increased and the power of a 3 frequency band decreased after exercise immediately comparing with those at rest.
结果发现，负荷后即刻与安静状态相比，δ、θ频段的功率值增加，α3频段则减少。 - Frequency Band Boundary Problem of Wavelet Frequency Characteristics
小波频率特性的频带边界问题 - For the wireless transmitter and receiver, basically, they can be classified into two parts: the part of base band and the part of Radio Frequency ( RF).
对于整个无线接收或发射系统，大体可分为两部分：基带部分（Baseband）和射频部分（radiofrequency，RF）。 - According to the papers published in the journal"Радио", the first issue of 2003, the method which widens effective band of low frequency reproduction in vented cabinet is used for reference.
笔者根据俄罗斯《Радио》杂志2003年第1期文章所叙述的开放式箱体中展宽重放低频有效带的方法，提出了实际的音箱结构。 - Comparing with the conventional electronically circuit mixer, the experiment result of the frequency mixing based on A/ D and DSP technique indicates that the realization of down mixing for some band pass signal of fixed carrier frequency is possible.
与常规电子线路组成的混频器比较，这种基于A/D和DSP技术实现混频的实验结果表明：对一些固定频率的带通信号是可以实现下混频的。 - Result: There are significant difference in main frequency band relative power of θ,δ frequency as compared with the control group before and after intravenous Nimotop, The main frequency band were slower and θ,δ relative power were higher in patients before intravenous Nimotop than that of control group.
结果：对照组与治疗组治疗前及治疗后主频、θ、δ相对功率值有显著性差异。 - A method for improving out band rejection of the nonsymmetric frequency response SAWF is presented.
提出了一种提高非对称频响声表面波滤波器带外抑制的方法，即采用特殊设计的多条耦合器加吸声介质； - Under the room temperature and Nitrogen environment ( eliminate the influence of water vapor absorption), we get the characteristic absorption spectrum of GaAs within the band of frequency.
在室温去除水份影响的氮气环境中，获得了低温生长的砷化镓在该波段的特征吸收谱。 - Finally, it had explained the radio-frequency spectrum resources importance, the characteristic as well as the multi-frequency band naming, and proposed the measure of frequency spectrum resource management.
最后阐释了无线电频谱资源的重要性，特性以及多频段的命名，并提出了频谱资源管理的措施。 - The pass band of this mode is from static to plasma frequency, and does not depend on structure dimension.
这一模式的通带从零到等离子体频率，而且不依赖于结构尺寸。 - Furthermore, energy characteristics of noise signal on the every frequency band were estimated in view of the power frequency of approximate signals and detail signals through the method of Bartlet average period.
为了进一步分析噪声源辐射噪声信号在各频率段的能量特征，用Bartlet平均周期图法对各级分解中的近似信号和细节信号进行功率谱估计。 - Waves concentrates in a narrow band of frequency with one to three peaks in the power spectra, corresponding to the eigen-frequencies of T.
波的能量集中在一个较窄的频段，其中有一至三个峰值分别对应于中性曲线内侧的T。 - In the modulation of amplitude, there are ordinary amplitude modulation ( the standard amplitude modulation AM), restraint signal carrier Double Side Band ( DSB) and restraint carrier Single Side Band ( SSB) according to the numbers of frequency spectra of the selected modulated signals.
在幅度调制中，根据已调信号的频谱分量不同，分为普通调幅（标准调幅AM）、抑制载波的双边带调幅（DSB）、抑制载波的单边带调幅（SSB）等。 - In order to increase the resolution and fidelity, the noise level must be reduced first and the sonic wave and high frequency random noise coming from surface must be eliminated, which can enlarge the width of frequency band of simultaneously recording high and low frequency information.
要提高分辨率和保真度，首先要压低噪声水平以及消除来自地表的声波和高频随机噪声，从而扩大同时记录高低频信息的频带宽度。 - The numerical results show that low frequency and large amplitude gravity waves can be generated by the sufficiently large external excitation within a narrow the frequency band which appoaches to the sum of the excitation frequency and the shell's inherent frequency.
通过数值计算，发现当激振力足够大，且激振力的频率在壳体固有频率与重力波固有频率之和的一个窄频带内时，会产生大幅低频重力波。 - Examples of numerical simulation show that low velocity layer leads to narrowing of seismic wave frequency band, as well as decrease of frequency and resolution of deep formations. This result is helpful for the study of high resolution seismic data processing methods.
通过模拟实例发现，地表低降速带使地震波频带变窄，频率降低，影响了深部地层的地震勘探分辨率，模拟结果可以用来进行提高分辨率的地震处理方法研究。 - Choice of receiver side band parameter and automatic frequency setting of the frequency synthesizer;
接收机边带参数选择和频率综合器频率的自动设置； - As the frequency band of the noise is overlap with the frequency band of momentary flywheel speed, it is less efficient to eliminate the noise with conventional signal processing methods such as filtering the data.
由于这种噪声的频带与飞轮瞬时转速信号的频带可能重叠，因此采用传统的滤波等方法无法完全消除齿形误差引起的噪声。 - It is very difficult to realize expanding the working band of Hartmann-Shack wavefront sensor through Frequency Transfer of Nonlinear Optics.
像差在非线性光学过程中传递结果不是线性叠加的，而是非线性的。 - Near infrared spectroscopy consists of frequency doubling and combination band of molecular vibration spectrum, but frequency doubling and combination band of molecular vibration spectrum in NIR zone is weak, band is complex and overlay.
近红外光谱分析主要利用分子的倍频与合频吸收，而分子在近红外区的倍频与合频吸收弱，谱带复杂，重叠多。 - Such a rotation cloak is observed in a microwave experiment, and the rotation effect is found in a broad band of frequency range.
在微波波段，我们在实验上实现了这样的旋转衣，并发现其旋转效应发生在很宽的频段里。 - Periodic composite structure has a band gap characteristics of vibration in specific frequency range, making vibration cannot propagate in the structure. Thus there is a new way of thinking to isolate, damp and control vibrations in engineering structures.
周期复合结构具有带隙特性，即特定频率范围内的振动在结构中不能传播，这为工程结构的隔震、减振和振动控制提供了一种新的思路。 - Example results show that the frequency band of fundamental frequency plays a primary role in structural response, the further a frequency band is away from fundamental frequency, the smaller contribution it will create to structural displacement response.
算例结果表明，结构基频所在频带对结构反应起决定作用，越是远离基频的频带对结构位移反应的贡献越小。 - These channels occupy the limited frequency band, and with the use of adjacent frequency bands to communicate becomes more commonly.
而这些信道只占据着有限的频带，再加上用相邻的频带进行通信越来越普遍。 - With the depletion of the microwave frequency resources and the development of millimeter-wave band technology, it becomes possible to develop high band system in satellite communication systems, where the EHF band ( millimeter-wave band) is one of the preferred frequency bands available.
在卫星通信系统中，由于微波频段频率资源的枯竭以及毫米波频段射频技术的发展，使得发展高频段卫星通信系统成为必要和可能。 - On the base of studying the fundamentals of PLL, it is on the side of innovation that we studied the multi-loop frequency synthesizer spur, and we analyzed and derived the tracking band of the frequency shift loop detailedly.
在研究锁相环路基本原理的基础上，对多环频率合成器的杂散地进行了创新性研究，对频移环的捕捉带进行了详细的分析和推导。 - After being transformed by Hilbert Huang Transform, the features of impact acoustic signal will be extracted, such as the energy of the high frequency band, and the reduction of high frequency band and low frequency band.
对碰撞声信号进行希尔伯特黄变换后，提取高频带能量及高低频能量差等特征。 - Get the flat band voltage of the MIS structure by using high frequency CV measurement, get the trap distribution in the insulator film by calculate the relation between traps location and the flat band voltage offset.
利用高频CV测量得到MIS结构的平带电压，根据陷阱与平带电压偏移量之间的关系，得到陷阱在绝缘膜中的分布。