查询词典 frequency bandwidth

As a rule of thumb, 14 Kbps of bandwidth per call is ideal.

作为一个经验法则，14Kbps的带宽每次通话是理想。

The netizen uses self-help of PPS network TV to build station system, not only can own the site of movie and TV that belongs to oneself, assure to be updated immediately, and need not be server bandwidth, transmission technology again, broadcast copyright of software, content and have a headache.

网民使用PPS网络电视自助建站系统，不但可以拥有属于自己的影视站点，保证即时更新，而且可以不再为服务器带宽、传输技术、播放软件、内容版权而头痛。

This paper presents two effective bandwidth estimation methods for asynchronous transfer mode technology over satellite networks with adaptive forward error control.

针对采用自适应前向差错控制的卫星异步传递模式网络，研究了两种有效带宽估计方法。

Statistical multiplexing and fast packet switching are adopted by Asynchronous Transfer Mode which has the advantages of flexibility and higher bandwidth efficiency.

对突发业务进行统计复用可以获得很高的频带利用率，采用快速分组交换技术能做到真正的"业务综合"。

The invention provides a device and method for realizing ATM link search, it can realize search of large amount of asynchronous transmission mode link, and satisfies the process of bandwidth.

本发明提供了实现ATM链接查找的装置和方法，使用该装置和方法可以实现较大异步传输模式链接数目的查找，并能满足带宽的处理。

From the lumped equivalent circuit model, the phase shift/attenuation and impedance characteristics of the novel structure are first analysed based on the Bloch theory, which shows the novel structure has properties analogous to those of a bandpass filter: the attenuation constant keeps zero with a continuous and smooth characteristic impedance distribution within the passband and the bandwidth may be arbitrarily specified; characteristic impedance is purely imaginary with the inhibition of the electromagetic wave propagation outside the passband.

首先从一般的等效电路模型出发，根据Bloch周期性理论对该结构的相移、衰减和阻抗特性进行了分析，结果表明该新结构具有类似带通滤波器的特性：通带内衰减常数为零，特性阻抗为实数并随频率连续平滑分布，具有可任意指定的阻抗匹配带宽；带外特性阻抗为纯虚数，电磁波传播受到抑制。

This is a waste of valuable transmission and processing bandwidth and can cause an unacceptable replication backlog to develop .

这是一个对宝贵的传输和处理带宽的浪费并且可能导致发展出不可接受的复制日志的积压。

In this paper, an extended divide and conquer algorithm is intended proposed, which is for solving the real symmetric band generalized eigenvalue problem under distributing environment Eigenvalue partition theorem is presented and proved Based on divide and conquer by extension, this algorithm computes generalized eigenpaires of symmetric band matrix pencil by bisection and generalized Rayleigh quotient iteration Theoretic analysis and numerical results show that this algorithm is better than the classic software package LAPACK when bandwidth is small and the scale is large Combined with multisection, which has good parallelism, it got good effects under distributed environments

提出了分布式环境下计算对称带状广义特征值问题的一种扩展分治算法，给出了特征值分割定理及其证明算法在扩展分治的基础上，利用二分压缩结合广义Rayleigh商迭代计算广义特征对理论分析和数值实验表明，对于窄带宽大规模的广义特征值问题，该分治算法明显优于LAPACK软件包结合并行性好的多分法，在分布式环境下获得了很好的并行效果1 引言本文研究了对称带状广义特征值问题Ax =λBx ( 1)的并行计算，其中，A ，B均为半带宽为r的n阶实对称带状矩阵且其中之一是正定的本文总假设B是正定的求解此问题有两种传统方法，第1种方法是通过计算矩阵B的Cholesky分解，将问题( 1)转化为标准特征值问题[1～3] ，进一步

The wide bandwidth bandpass filter is designed to suppress the fundamental and third harmonic signals.

设计宽带带通滤波器的目的是为了抑制基波和三次谐波。

Relative bandwidth is a key specification for the medium bandpass infrared filter, which depends on the film structure and its design.

相对带宽是红外中带滤光片重要的指标，主要取决于光学薄膜的膜系结构和具体设计。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。