The problem with a two-dimensional theory is that it is unphysical, as we see four dimensions at our scales.
但二维理论又存在非物质性的问题，因为我们所在的尺度看到的是四个维。
Wormhole Theory is proposed by Einstein and perfected by Nathan Rosen. Wormhole is a multi-dimensional space tunnel connecting two distant Spaces.
虫洞理论是爱因斯坦提出并由纳森•罗森完善的。虫洞就是连接两个遥远时空的多维空间隧道。
Introduced in this paper are two fracture critical surfaces of three dimensional mixed mode obtained from the theory of strain energy density factor and the theory of maximum tensile strain.
本文对按应变能密度理论和最大拉应变理论所推导出的两个三维复合型断裂临界曲面作了简要介绍。
In this article, the critical exponents of the polymer model SAT in two dimensional square lattice have been studied with the real space renormalization theory.
用实空间中的重整化群理论，对二维正方形格点上的高分子模型自踪迹规避链进行了求解。
This paper mainly discusses the mathematical basis of MHD Foils and whether the two dimensional wing theory still will be effective.
本文讨论了磁流体翼的数学基础，即二维机翼理论在磁流体翼中适用的条件。
A real time modeling approach for nonlinear discrete time system is presented by using the concept of time variant recurrent neural network and the theory of two dimensional system.
利用时变反馈神经网络的概念及二维线性系统理论给出了非线性离散系统的一种实时建模方法。
Double wave quantum theory is applied to the description of a two dimensional hydrogen atom. The classical limit of this description is discussed.
运用双波量子理论，给出了二维氢原子的双波函数描述，并讨论了其经典极限。
One-dimensional homogeneous model based on the gas-liquid two-phase flow theory was established.
基于气液两相流理论，建立了垂直上升管内液氮气液两相流动的一维均相流模型；
Therefore, research on the problem of two-dimensional optimal layout for rectangular parts is very important in theory and applications.
因此，开展对二维矩形件优化排样问题的研究具有重要的理论意义和工程应用价值。
With fractal theory, a new fractal dimensional calculation is adopted to calculate two dimensional fractal dimension of EDM surface.
利用分形理论，采用一种新的分形维数计算方法，得出电火花加工表面的二维分形维数。
The propagation of wave packet produced from a point source in two and three dimensional incompressible boundary layer is investigated numerically on the basis of linear stability theory.
根据线性稳定性理论研究点源产生的波包在二维和三维不可压边界层中的传播特征。
The necessary conditions that must be satisfied by the electromagnetic field when the two dimensional wing theory works were obtained.
本文得到了要使二维机翼理论成立电磁场所要满足的必要条件。
Theoretical analysis, numerical calculation and experimental study are tarried out for this kind of antenna, by use of the theory of two-dimensional periodic admittance surface.
本文对上述天线应用二维周期导纳表面理论进行了初步的理论分析、数值计算和实验研究。
Most of the two-dimensional models that manage topology are based on the planar graph theory.
大多数操作拓扑结构的二维模型都是基于平面理论的。
A matrix perturbation theory in the partial inverse scattering of two-dimensional lossy dielectric cylinder is presented.
本文提出二维有耗介质柱局部逆散射的矩阵摄动理论。
According to surface theory in differential geometry, the two-dimensional surface is parameterized by two variables.
微分几何中的曲面论，用两个变量就可以完全参数化一个二维曲面。
Based on the theory of 'property right of the human capital ', and so on, I devised the encouragement system which is based on the "two dimensional weighting stock ownership incentive".
笔者以人力资本产权等理论为基础，设计了以“二元加权股权”激励为核心的激励制度。
Based on the theory of surface diffusion, a finite element method was developed to simulate shape evolutions of two-dimensional microcracks with surface perturbation.
根据表面扩散控制下物质迁移规律，建立有限单元法，对裂面形貌扰动下二维微裂纹演变过程进行数值模拟。
In the paper, a single-charge tunneling simulator, the master equation simulator of two dimensional quantum dot array using Orthodox theory and master equation method is introduced.
介绍了一种利用正统理论与主方程方法模拟二维量子点阵列的程序。
The two dimensional theory of induced gravity with cosmological constant is quantized in the superspace approach.
本文用超空间方法对其有宇宙学常数的二维诱生引力进行量子化。
Solution on electromagnetic wave propagation in a two-dimensional reflector antenna by Symplectic Geometrical Theory has been gotten.
文中采用辛几何方法得到了二维反射天线上电磁波传播问题的解。
The research about finite element analysis for two-dimensional thermal structures with uncertain parameters has extensive engineering-background, important theory meaning and academic value.
不确定性参数的二维热结构有限元分析研究有着广泛的工程背景和重要的理论意义与学术价值。
In this article we briefly introduce the theory and characteristic of PDF417 two-dimensional bar code technology and its application in medicine.
简要介绍P DF417二维条码技术的原理、特点及其在医学中的应用。
A surface equation of state for nonionic surfactant aqueous solutions is developed by using perturbation theory and two - dimensional gaseous theory.
应用微扰理论并借鉴二维气体理论的处理方法，建立了非离子表面活性剂水溶液的表面状态方程。
The generalized slip-line theory is advanced, which develops the classical slip-line theory and can be used to solve all two-dimensional problems and axisymmetric plastic deformation problems.
提出了广义滑移线法，将经典滑移线理论拓展到能求解所有二维问题和轴对称塑性变形问题；
Using the periodic orbit theory, we computed the quantum level density of a particle in the two-dimensional harmonic oscillator potential with and without the magnetic flux line for different cases.
利用周期轨道理论，我们计算了在不同情况下，一个粒子在二维谐振子势中存在和不存在磁通量时的量子能级密度。
On the basis of standard spin-wave theory, the magnetic dispersion relations for a two-dimensional Heisenberg antiferromagnet are investigated.
利用标准的自旋波理论，研究了二维三角海森堡反铁磁体的色散关系。
Based upon the theory of upward continuation of two-dimensional magnetic anomaly data, a corresponding downward continuation formula has been derived.
从二度磁异常上延理论出发，推导出一种下延方法。
Based on digital image processing and combined coding theory, two-dimensional matrix bar code is a symbol system processed automatically using image recognition technology.
作为二维条码的一种，矩阵式的二维条码是建立在计算机图像处理技术、组合编码原理等基础上的一种图形符号自动识读处理码制。
Based on digital image processing and combined coding theory, two-dimensional matrix bar code is a symbol system processed automatically using image recognition technology.
作为二维条码的一种，矩阵式的二维条码是建立在计算机图像处理技术、组合编码原理等基础上的一种图形符号自动识读处理码制。
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