对聚合物晶体中各种高分子链的构象进行了研究，找出了它们的三维对称性，并用直线群来表征。
The three-dimensional symmetry of a macromolecular chain was characterized by the line group. Regularities of packing of macromolecular chains in a space group were shown.
在三维空间中，球同样是中心对称的。
In three dimensions, a sphere is likewise symmetrical under all rotations about its center.
利用已得到的三维轴对称问题的非局部弹性应力的解，采用级数近似展开的方法，求解环状裂纹的边值问题。
Solves the problem of boundary value on an annular crack by using the nonlocal stress solution of an axisymmetric crack problem and approximative method of series expansion.
本文用三维弹塑性有限元法计算了含圆孔对称复合材料层板的层间应力分布。
In this paper, the interlaminar stress distributions of symmetric composite laminates with a hole are predicted by the three-dimensional elastoplastic finite element method.
分别是二维、三维和对称的子程序和验证程序。
Are two - dimensional, three - and symmetrical subroutine and the verification process.
本文应用零方程模型和二方程模型计算了椭球体有攻角绕流对称面上的三维湍流边界层。
Revised method is proposed for calculation of three dimensional turbulent boundary layers on the surface of symmetry plane of a flow around ellipsoid at incidence.
为了获得一种对称压缩圆光束的方法，系统研究了三维自散焦介质中亮暗光束对的共同传输。
To contract the circular beam symmetrically, the co-propagation of the bright and dark beams in three-dimensional self-defocusing media is studied systematically.
文中针对圆管式径向对称流向变换反应器三维模型，利用交替方向隐式方法(adi)建立新的求解格式。
A new computational scheme was developed to solve a three-dimensional model of a periodic flow reversal reactor by ADI alternating direction implicit method.
第二部分工作则从前面合成得到的C3对称的三维骨架出发，通过动态共价化学的方法定量地合成得到了一系列刚性的纳米级荧光笼状结构。
In the second part, a readily modifiable structure with C3 symmetry was developed to quantitatively build a series of 3D shape-persistent fluorescent nanocages via dynamic covalent chemistry.
如果考虑压力梯度的影响，还可以将该方法推广到轴对称和三维湍流边界层中去。
The method can be extended to axisymmetric and three-dimensional turbulent boundary layers if the pressure gradient effect is considered.
利用特征线方法数值模拟了双圆弧和抛物线两种特型喷管中的三维非对称定常等熵的超音速流场。
Numerical simulation of three-dimensional, steady, isentropic, non-symmetrical flow in rocket nozzles is completed using a bicharacteristic method.
此外，对具有确定宇称的三维磁场中运动电子的对称性也作了讨论。
In addition to this, discussion on symmetry also extends to the moving electron in any three-dimensional magnetic fields.
败德行为的萌生和实施，依赖着信息不对称性、素质不全面性和市场不完善性三维约束。
The production and implement of degeneration depend on three-dimensional disciplines:asymmetry quality imperfection and market imperfection.
再次，运用二维轴对称有限元法以及三维有限元法，系统分析了挤扩支盘桩单桩和群桩的承载变形性状。
Thirdly, the bearing and deformation characteristics of single and group piles are investigated by means of axisymmetric finite element analysis (FEA) and three-dimensional FEA.
针对轴对称目标三维姿态参数中的偏航角、俯仰角的提取问题，提出了一种自动提取目标中轴线方法。
In order to measure the pitching Angle and yaw Angle of the axes symmetry object in three-dimension orientation, an automatic method of extracting the axes of the object has been presented.
在此基础上将该方法成功应用于脉动流场下轴对称三维正弦波壁圆管内的质量传递测量。
The successful application of this method in a three-dimensional sinusoidal wavy-walled tube for pulsatile flow shows its validity.
基于滑面正应力修正模式，推导出旋转非对称边坡三维极限平衡安全系数显式解答。
Based upon modification of the normal stresses over the slip surface, the explicit limit equilibrium solution was derived for the 3d safety factor of asymmetric and rotational slopes.
结果表明，对于完全对称的结构，也应该考虑地震波的三维输入。
The result shows that earthquake waves should be inputted from three directions even for symmetrical structures.
提出一种基于非对称双相机结构光的三维扫描系统方案。
An asymmetry Dual-Camera structured light based 3-d digitization system is introduced.
这种三维粒子模拟可以扩展到非对称的电子枪的模拟，如橱控电子枪，多注电子枪等。
This PIC simulating can be extended to gun with asymmetric construction such as grid-control gun and multiple beam gun etc.
在其合成体系中，碳能够实现三维方向扩散，有利于金刚石的对称长大，提高晶体完整性。
In the synthesis system, the carbon can diffuse in three directions, which is helpful for diamond to be crystallized symmetrically and to increase the integration of the crystal.
三维模型对称性检测的关键问题在于如何快速准确的找出对称轴。
The key issues on symmetry detection of three-dimensional model is how to quickly and accurately identify the symmetry axis.
径向湍流强度测量结果显示，此时管中流动已是复杂的三维结构，而非轴对称的二维结构。
Results of turbulence intensity across the pressure node plane also show, the regular and symmetrical flow structures in the tube have been turned to turbulence.
本文用三维弹性力学理论求得球壳轴对称扭转振动问题的解析解。
In this paper, an analytical solution of twisted vibration problem for spherical shells is obtained by the three dimensional elastic theory.
与传统的对称三维小波变换相比，非对称的三维小波变换能够更有效地去除相邻谱段间的冗余。
Compared with traditional symmetric 3d wavelet transform, asymmetric 3d wavelet transform can more efficiently remove the correlation between the adjacent bands.
文中给出了，圆柱孔轴对称弹性力学课题的三维理论解，及有限长圆柱孔全长壁面受轴对称应力的通解与具体例子。
In this paper, a comprehensive theoretical solution to the three-dimensional axial symmetric elastic problem for cylindric hole is presented and discussed.
作为一种流体，液晶蓝相能像晶体一样有三维空间群对称性，这引起了人们的广泛兴趣。
As a liquid, the blue phase shows the 3d-space group symmetry, just like crystals, which arouses people's interest.
在铁路线路三维场景中，存在着大量的对称物，如树木、亭子、栏杆等，大部分对称物都属于复杂地物。
There are a lot of symmetry objects in the railway 3d sight, such as tree, georgette, and balustrade and so on.
在铁路线路三维场景中，存在着大量的对称物，如树木、亭子、栏杆等，大部分对称物都属于复杂地物。
There are a lot of symmetry objects in the railway 3d sight, such as tree, georgette, and balustrade and so on.
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