域

Obtained about 100 models (namely wavelet-domain HMMs) of ships by training a large amount of the ship-radiated noise data, compared these models according to the combination of various conditions speed, abeam, etc.

对大量数据进行了训练得到近百个舰船辐射噪声的小波域HMM，并按航速、正横距离及不同工况组合比较了舰船辐射噪声的小波域HMM，给出了模型解释。

Suppose G is a finite group, then QG is a semisimple Q-algera, obviously ZG is a Z-order of QG,we denote the maximal Z-order by ?.If G is not abelian, it is not an easy thing to determine г; if G is an abelian group, then QG is isomorphic to the direct sum of a finite number of number fields, and r is the direct sum of these rings of algebraic integers of those number fields, but which elements of QG belong to r is not clear.

设G是一个有限群，那么QG是一个半单代数，ZG是QG的一个Z-序，设Γ是QG的一个极大Z-序，当G是一个非交换群时，Γ的求解是困难的问题；当G是一个交换群时，QG同构于有限多个数域的直和，Γ相应的就是各数域代数整数环的直和，但Γ具体是QG中那些元素不清楚。

In this paper we proposed an improved method which changes the definition of the 4-neighborhood model. we call it side neighborhood minimum absolute weight prediction tree technique. lt can simplify the algorithm and improve the results of lossless compression.

本文对预测树方法进行改进，提出一种侧邻域最小绝对权值预测树方法，通过改变预测树的四邻域定义，使构造预测树的算法简化，并且，实验结果表明，对不同类型的多光谱遥感图像，SNMAW的压缩效果与MAW的压缩效果相近或有所改善。

Finite-difference time-domain method was used to simulate the coupling processes of ultra-wide-band electromagnetic pulses into a cavity with a slot, and an anisotropic perfectly matched layer absorbing medium was inserted to truncate the computational lattices.

用时域有限差分法模拟超宽带脉冲入射时与目标腔体上的孔缝相耦合的过程，用单轴各向异性的完全匹配层吸收边界条件截断时域有限差分网格。

It can be inferred from the analysis of the two languages that people employ things they are familiar with to refer to abstract concepts, for example, the spatial concepts of UP and DOWN can be used for abstract concepts like NUMBER, STATUS, QUALITY etc.

两种语言中UP，DOWN空间概念的使用是人们遵循"近取诸身，远取诸物"的原则，将空间域的概念投射到数量，社会地位，情绪状态以及好坏等抽象概念域，以减小认知难度的结果。隐喻的使用和理解符合人类认知的普遍规律。

The set of values of the test statistic for which the test rejects the null is the rejection region, and the values of the test statistic for which it does not reject the null is the acceptance region.

假设检验中，使得零假设被拒绝的检验统计量的取值范围称为拒绝域，使得零假设不能被拒绝的检验统计量的取值范围成为接受域。

Familiar with the time-domain system discrete time-domain (3) using deconvolution method of analysis in time domain characteristics.

熟悉时域离散系统的时域特性（3）利用卷积方法观察分析系统的时域特性。

From the structural and assembly characteristics of hypoid gear main reducer assembly,the way to process characteristic parameters of the vibration acceleration single amplitude domain,time domain and frequency domain of the main reducer housing is studied.

针对汽车准双曲面齿轮主减速器总成的结构及装配工艺特点，研究了主减速器总成壳体振动加速度信号幅域、时域和频域的特征参数处理方法。

Secondly, making use of the good time frequency characteristics of the wavelet analysis in the signal processing, the wavelet softthreshold filtering of the swing CO2 welding voltage signal under the arc discharge sense was carried out, showing the possibility of removing the peak current of the shortcircuit transition and improving the signal-to-noise ratio.

二是利用小波分析在信号处理上良好时域、频域局域性，对电弧传感方式下的摆动焊接电流进行了软阈值滤波，取得了良好的效果，消除了短路过渡所造成的峰值电流，提高了信噪比。

However,it is the dissipa-tive mechanism,i.e.the mechanism of energy localization that attracts one′sattention for the problem of shock initiation.Since the test result of shock initia-tion about fine-grain explosive charge does not support hot spot ignition model,the author of this dissertation advances that the mechanism of energy localiza-tion is coincident with phonon-fracton crossover of fractal network for ultra-fine-grained charge and,moreover,analyzes the relation between shock sensi-tivity and porosity,which is consistent with shock Hugoniot curve for porousmaterials.

由于超细颗粒压装炸药的冲击起爆实验不支持热点点火模型，为此、本文提出对于单晶颗粒半径为微米以下量级的药床，冲击起爆的能量局域化机制与分形网络中弱局域化声子向强局域化分形子的渡越对应，并且根据这一机制分析了超细颗粒药床的冲击感度和孔隙度的关系，结果与多孔物质冲击压缩的P-V图吻合。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。