However, for different sound fields, because of the difference in the space volume, shape and absorption coefficient, the receiving radius are different.

但對(duì)不同的聲場(chǎng)空間來(lái)說(shuō)黄色入口，由于空間體積、形狀和吸聲系數(shù)的變化草草福利国产影院，聲線密度是不同的国产Aⅴ一区二区三区四区，因此接收球半徑也會(huì)不同。

In this dissertation, based on the extraction of meaningful polarization information, the polarimetric speckle reduction, polarimetric contrast enhancement, polarimetric classification and ship detection in polarimetric SAR images are systemically studied. During the study, some new concepts and methods are introduced, which are supported by the application to measured Pol-SAR data. The innovations of this dissertation are as follows: 1 A simplified schem is proposed to reduce the complexity of scattering-model-based speckle filtering. 2 Extend the expression of polarimetric correlation coefficient to help distinguishing targets. In addition, introduce the quantized parameters of polarimetric signature so as to show the differentiae in quantity in co-polar power, cross-polar power and shapes of polarization signatures among targets. 3 Define a new parameter of difference degree between targets, which can be used for express the difference between both coherent and distributed scatters.

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In the two-dimensional simulation, the fully implicit difference scheme is used for the continuity equations to ensure numerical stability; Jacobian iteration is used to solve the difference equations, and only nonzero elements in the coefficient matrixes of these equations are dealt with, which reduce the requirement for memory and shorten the calculation time.

在兩維模擬計(jì)算中，對(duì)連續(xù)性方程采用全隱式差分方案以保證數(shù)值穩(wěn)定性在线精品自拍第一页；運(yùn)用雅可比迭代法求解差分方程組极品萝在线永久视频欧美，并且在求解過(guò)程中，只對(duì)差分方程組系數(shù)矩陣中的非零元素進(jìn)行處理啪啪啪不卡视频，因此減少了對(duì)內(nèi)存的需求量国产精品无码无套在线，而且縮短了計(jì)算時(shí)間。

The main difference of two strategies lies in grade 3 and the grade 4 and there is no difference in the grade land the grade 2; there is the obvious positive correlation between sex and the experimental design, and there isnt obvious correlation between sex and the elementary knowledge; the Spearman rank correlation coefficient r_s=

梯度指導(dǎo)策略與突擊強(qiáng)化策略的教學(xué)效果的主要區(qū)別在于梯度391在线精品、梯度4的得分黄色的视频在线免费看在，在梯度1最新自拍偷拍精品视频、梯度2上基本無(wú)差異；性別與實(shí)驗(yàn)設(shè)計(jì)有明顯的正相關(guān)性色在线观看视频免费网站，性別與基礎(chǔ)知識(shí)無(wú)明顯的正相關(guān)AV毛片三级片在线观看；生物基礎(chǔ)知識(shí)與實(shí)驗(yàn)設(shè)計(jì)成績(jī)的Spearman等級(jí)相關(guān)系數(shù)，r_s=0.443超碰日韩精品在线看，0.4＜r_s＜0.6欧美日韩精品综合在线一区二区，即學(xué)生的生物基礎(chǔ)知識(shí)與實(shí)驗(yàn)設(shè)計(jì)成績(jī)呈中等正相關(guān)。

Of " of unlock " difference fan bureau-- base the dweller income of coefficient and our country allocates the Buddhist nun problem of difference income gap is remittent now care relatively.

解開(kāi)"差距"的迷局--基尼系數(shù)與我國(guó)的居民收入分配差距收入差距問(wèn)題現(xiàn)在上上下下都較為關(guān)心免费大黄片。

Based on Wu's elimination method and "divide-and-conquer" strategy, the undetermined coefficient method for constructing polynomial conservation laws of nonlinear differential-difference equations was improved. Furthermore, a Maple package CLawDDEs was developed to automatically derive conserved densities and associated fluxes of polynomial differential-difference equations.

基于吳消元法和"分治"策略98极品少妇精品视频，改進(jìn)了基于標(biāo)度不變性構(gòu)造非線性微分差分方程多項(xiàng)式形式守恒律的待定系數(shù)算法，并在計(jì)算機(jī)代數(shù)系統(tǒng)Maple上實(shí)現(xiàn)了改進(jìn)后的算法黄色操逼片，其中的軟件包CLawDDEs可自動(dòng)推導(dǎo)出微分差分方程的守恒密度及連帶流久久久精彩视频。

Firstly, this paper introduced the involute few teeth difference planetary transmission organization and its structural design., analyzed determined parameter, meshed transmission limiting condition and the dislodgement coefficient choice of the few teeth difference planetary transmission organization.

首先，本文介紹了漸開(kāi)線少齒差行星傳動(dòng)機(jī)構(gòu)及其結(jié)構(gòu)設(shè)計(jì)欧美成人aⅴ在线播放，分析少齒差行星傳動(dòng)機(jī)構(gòu)的參數(shù)確定色呦呦一站二站、內(nèi)嚙合傳動(dòng)的限制條件和變位系數(shù)的選擇，為后續(xù)的優(yōu)化設(shè)計(jì)色中色污网站、CAD/CAE分析奠定理論基礎(chǔ)欧美性爱干。

FLAC~(3D) is for the analysis of the Lagrange explicit finite difference procedure for the timely steps to solve the dynamic relaxation, for when the difference method based on the show, less memory, faster solution. This paper discusses the usage of model FLAC create certainty and mixed model approach and to a dam seepage stability analysis as the research object, the establishment of a certainty piezometric level model, and further establish hybrid model, and the permeability coefficient for inversion analysis.

本文探討了利用FLAC建立確定性模型和混合模型的方法，并以某土壩滲流穩(wěn)定分析為研究對(duì)象不卡毛片日了日操了操，建立了測(cè)壓管水位的確定性模型超碰在线综合网，進(jìn)一步建立混合模型。

It is pointed out that due to the difference of the temperature expand coefficient of aluminum alloy gear case and steel bolt, when the temperature of the gear case increased,additional temperature-difference load is generated,which is the ultimate reason of the bolt failure.

指出由于鋁合金齒輪箱和鋼制螺栓的熱膨脹系數(shù)不同青春人人摸人人操人人干，在齒輪箱溫度升高后產(chǎn)生附加的溫差載荷99国产精品久久久久，此溫差載荷是螺栓失效的根本原因，由此依據(jù)相關(guān)公式提出了改進(jìn)措施美女高潮潮喷流白浆视频在线观看。

Furthermore, this model organically introduces reliability coefficient in psychology study, and objectively depicts the difference in analysis and judgment expert making result's reliability. Moreover, it effectively reduces the infection from expert authority difference to estimation result.

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