However, we are in the important period of breaking into the urban-rural dual structure to form a new integrated pattern of economic and social development in urban and rural areas. With the depth of the economic and social development and the adjustment of the interest structure, the institutional and social problems of rural city appear, various of contradictions also arise.

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The structure of social consciousness is unified by the duplicity and dual-structure.

社會意識的結(jié)構(gòu)是兩重性和兩層性的統(tǒng)一。

This paper presents research and development proce- dure, structure design and performance of engine of 258 kW, which is the highest power ranking of the D683 family. high speed marine diesel engine, structure design, performance optimization

本文主要介紹258kW D683高速高性能船用柴油機的結(jié)構(gòu)設(shè)計久久噜天天噜日日噜、性能研究和研制開發(fā)的情況。2產(chǎn)品用途的定位以高速高性能船艇的主機動力以及類似要求的船用動力為主要配套對象午夜性爽免费一级视频，經(jīng)過

The natural characteristics of the structure are calculated with the recurrence method. The value of the frame structure's displacement and dyn...

文中還說明了使用遞推方法計算結(jié)構(gòu)的各階動特性以及利用動態(tài)有限無法求解框架結(jié)構(gòu)動態(tài)響應(yīng)和動應(yīng)力的方法a片一区二区在线免费播放。

Taking the structure dynamical variables of LFSS as system states, the variable structure model reference adaptive coupling active control system is established.

以LFSS的結(jié)構(gòu)動力學變量為系統(tǒng)狀態(tài)，建立了變結(jié)構(gòu)模型參考自適應(yīng)耦合主動控制系統(tǒng)爱爱免費视频网址，研究了高階參考模型和滑態(tài)參數(shù)矩陣的選擇方法久久精品国产这里只有精品。

Seismic tomography is used to study the 3-D seismic velocity structure andattenuation structure of earth by the seismic wave information obtained from a largenumber of passive earthquakes and artificial earthquakes.

地震層析成像是一項通過綜合大量天然震源或人工源激發(fā)的地震波信息來研究三維地震速度圖象或地球衰減結(jié)構(gòu)圖象的技術(shù)。

The modification and redesign of the part structure is easy, if needed. A structure identification method based on 3D eigenfunction is developed by analyzing the features of each cross-section.

通過對物體斷層輪廓內(nèi)在規(guī)律的研究和分析久久思思热视频，提出了用各斷層的特征構(gòu)造物體三維的結(jié)構(gòu)特征函數(shù)色综合加勒比一本无码，進而實現(xiàn)物體結(jié)構(gòu)識別的方法。

In this thesis, two electrochemical activation methods and two activation solution were used to obtain four types of the activated GC electrodes. Effects of electrochemical activation procedure on the structure, the size, the distribution and the type of electron transfer site on electrode surface have been investigated. Application of electrochemical activation GC electrode has been exploited in electroanalysis of metal ions. Meanwhile, the essence structure and character of electron transfer site of sp2 hybridized carbon material have been explored.

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Finally, considering the request of the GFRP bars reinforced furan resin concrete electrobath, we designed the structure of the electrobath and use finite element method to analyse it. In the process, pre-stress also was considered. The result of use in practice indicate the properties of GFRP bars can meet the request of electrobath structure.

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The influences of the original organic compound structure,content,active additive,anode current density,polarization work status,electrolyte circulation rate and temperature as well as electrobath structure during electrolysis fluorination are researched in the Center.

研究了電解氟化時原始有機化合物結(jié)構(gòu)及其含量国产日韩成人香蕉软件、活性添加劑看美女被操久久精品、陽極電流密度、極化工況538视频在线播放欧美、電解液循環(huán)速度和溫度以及電解槽結(jié)構(gòu)等各種因素的影響在线人成。