Compared with others , it is more regular to express scene data , with better reusability and maintainability of 3d data , large application expansion to 3d data , more reasonable mutual data storage between 2 - dimensional control cabinet and the virtual scene 采用该方法，比其他建模方法更加规则地表示了场景数据；提高了三维数据的重用性；增强了对三维场景的可维护性；大大扩展了对特定三维数据的应用；更加合理地存储了二维控制台与虚拟场景交互的数据。
Abstract : considering the special burning situation inside industrial furnace firebox ， an infrared calculation model with elimination of the influence of flue gas was established 2 - dimensional temperature patterns of furnace tube temperature in operation was obtained with infrared thermovision ， which provides scientific basis for the optimization of process operation 文摘:针对工业炉内特殊的燃烧环境，从消除烟气影响切入，建立了红外计算模型，并利用红外热像仪获得运行状况中炉管表面二维温度场及其变化特征，为优化工艺操作提供了科学依据。
The result of the interpretation demonstrates that the application of this software system to 2 - dimensional interactiveinversion of ip and resistivity data can quite satisfactorily infer the spatial shapes and occurrence modes of underground ore ( mineralized ) bodies , and hence provide grounds for rational arrangement of exploration work 解释结果表明，采用该软件系统对激电和电阻率法实测资料做二维人机联作反演，可以较好地推断地下矿（化）体的空间形态及赋存状态，为合理布置勘探工程提供依据。
Our vision is to manager 3d spatial objects by relational database management system and to manipulate the 0 - dimensional object , 1 - dimensional , 2 - dimensional , and 3 - dimensional in unifiable manner . we employ the mature technology of object - relational database in existence to solve some complex problems of spatial operations efficiently 研究中，我们把三维空间中的0维对象、 1维对象、 2维对象和3维对象纳入了统一的处理框架，为利用现有的数据库技术处理复杂的地理数据探索出一条可行的途径。
In this paper , pavement dynamic loading was obtained from field data of pavement unevenness by quarter - truck vehicle model . then , finite element software nastral was employed to investigate the structural response of 2 - dimensional asphalt pavement under different type of excitation , as well as the influence of pavement parameters on the stresses and deflection of the pavement . the effects of arbitrary loading on asphalt pavement were also analyzed . finally , the structural response of 3 - dimensional asphalt pavement subject to excitation was studied 应用有限元程序nastral对沥青路面在动态荷载作用下的结构响应进行了数值分析。文中着重分析了不同激励下二维平面应变模型的动态响应规律以及路面结构参数改变对沥青路面动态响应的影响。文中还研究了任意荷载作用及荷载位置变化时路面结构内的应力状态。
The anisotropic property of the generalized difference methods has not been studied until now . in this paper , the anisotropic property of a kind of generalized difference methods is analy - sized and its error estimate is obtained without the limitation of regularity . finally , the numerical examples show that the theoretic analysis is right . in addition , based on the 2 - dimensional quasi - wilson element , the quasi - wilson element in the 3 - dimensional space with application to second - order porblem is presented . lt is proved that it is convergent for arbitrary hexahedron regular subdivision in 3 - dimensional space , and its error estimate is obtained 本文结合各向异性有限元的研究成果，对基于矩形剖分的一类广义差分法进行了各向异性分析，给出了与剖分的正则性无关的收敛阶估计，并进行了数值试验，表明这类广义差分法具有各向异性特征，可以用于窄边问题的计算。
This paper thus presents a 2 - dimensional evaluation criteria , which assesses the social value as the bottom line to ensure that the value activities of every human being has the positive social value , and the dimension of self - value as he source drive and final goal of human value activities under the guide of social value 在此意义上，本文提出了二维评价标准，即以社会价值维度的评价标准作为人的价值活动最底线以此保证每个人的价值活动都具有正社会价值；在社会价值认可的范围内，以自我价值维度的评价标准作为人的价值活动的源动力和终极目的。
Third , we present some exact global solutions with values in unit sphere for 2 - dimensional landau - lifshitz equations with certain initial - boundary conditions , next , we give a tuft of initial data which generate a group of exact global smooth solutions with values in the unit sphere . these solutions , as we shall prove later , form a continuum 第三、给出具一定初边值条件的二维landau - lifshitz方程的一些精确的取值于单位球面的整体光滑解，同时给出一簇初值，这簇初值使得landau - lifshitz方程有一簇精确的取值于单位球面的整体光滑解，这簇整体光滑解构成一个连续统。
As examples , heterogeneous anisotropic fractured rocks of which the autocorrelation functions of crack number density can be described as 2 - dimensional exponential ellipsoidal or gaussian function were simulated especially . the results show that : 1 ) the random distribution characters could be different for different elastic constants under the same random distribution of crack number density . 2 ) the exponential ellipsoidal heterogeneous anisotropic random fractured model could be a suitable model for the multi - scaled and self - similar heterogeneous media 模拟结果表明： 1 )弹性常数的分布特征与裂纹数密度的分布特征不相同，并且裂纹数密度对不同的弹性常数有不同程度的影响； 2 )指数椭圆型随机裂缝模型适用于模拟具有多尺度、自相似的特性非均匀裂缝岩石； 3 ) gaussian型随机裂缝模型适用于模拟单尺度、平滑的非均匀裂缝岩石。
In chapter 2 and 3 , wave front solutions of the delay reaction - diffusion cui - lawson equation and the 2 - dimensional competitive lotka - volterra systems are obtained by constructing an upper solution and a lower solution of a second differential equation with delay . in chapter 4 , it is discussed that travelling wave solutions of the delay reaction - diffusion equations whose reaction term do not satisfy quasimonotonicity condition or weak quasimonotonicity condition 在第二章和第三章，利用一类二阶时滞微分方程解的存在性理论，通过构造这类时滞微分方程的上、下解，分别研究了含时滞和扩散的cui - lawson方程和二维竞争型lotka - volterra系统，得到了它们波前解存在的充分条件。
