助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   two - dimensional 的翻译结果: 查询用时:0.012秒
图标索引 在分类学科中查询
所有学科
无线电电子学
更多类别查询

图标索引 历史查询
 

two dimensional
相关语句
  二维
     Analysis on structures and properties of two-dimensional PSD
     二维PSD的结构和性能分析
短句来源
     Diffraction by Two-Dimensional Fractal Screens
     二维分形相位屏的衍射
短句来源
     Completion of the NC programming system for plane engraving mentioned in this paper is based on the supporting software for two- dimensional design.
     该文论及的平面雕刻数控编程系统是在现有的二维设计支撑软件的基础上完成的。
短句来源
     Conclusions:The precision of the diagnosis of metastatic lymph no de can be improved by checking it with two-dimensional and color Doppler ultrasonography.
     结论:二维超声与彩色多普勒结合检查可提高诊断乳腺癌淋巴结转移的准确性。
短句来源
     We reassessed 39 pations with mitral valve prolapse (MVP) by two-dimensional color Doppler echocardiography (2D-CDE).
     我们应用二维彩色多普勒超声心动图重新评估了39例二尖瓣脱垂的病人。
短句来源
更多       
  “two - dimensional”译为未确定词的双语例句
     COMPLETE ~1H AND ~(13)C RESONANCE ASSIGNMENTS OF ent-kauran-16β17-diol AND PARAQUILGIN BY TWO-DIMENSIONAL SHIFT-CORRELATED NMR
     宿萼假耧斗菜有效组分的NMR研究
短句来源
     A Numerical Method of Studying Unsteady Two-Dimensional Conduction Heat Transfer Problems
     一种二维非稳态导热问题的数值解法
短句来源
     5 important geological cross-sections in the line of Wuhan Subway System planned were taken as calculation examples and the relative numerical simulations for the dynamic states of the surrounding soil bodies in the construction by shield method were carried out tentatively by using two-dimensional elasto-plastic FEM. According to the computations the plastic zones displacements stress redistributions in the soil bodies and the ground surface subsidences were analyzed and the corresponding understandings and suggestions were given.
     以拟建中的武汉地铁线路的5个重点地质剖面为例,用平面弹塑性有限元方法对该地铁隧道用盾构法施工中周围土体动态进行了数值模拟,分析了土体中的塑性区、位移、应力分布及地表下沉情况,并提出了相应的认识和建议。
短句来源
  相似匹配句对
     Two.
     二.
短句来源
     Two.
     二、末日意识
短句来源
     The Dimensional Image
     意象的空间
短句来源
     N Dimensional T—norm
     n维T—norm
短句来源
     good dimensional stability;
     尺寸稳定性好;
短句来源
查询“two - dimensional”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


Due to the gradual energy decay the free turbulent shear flow far downstream resembles the final stage motion of homogeneous isotropic turbulence. As in the latter case we adopt the concept of vortex motion structure of turbulence to solve the present problem. The dynamical basis of vortex motion solution is the set of equations of turbulent velocity fluctuation. In the flow field of the final stage motion of free turbulence the Reynolds number of turbulence is comparatively small, hence the non-linear terms...

Due to the gradual energy decay the free turbulent shear flow far downstream resembles the final stage motion of homogeneous isotropic turbulence. As in the latter case we adopt the concept of vortex motion structure of turbulence to solve the present problem. The dynamical basis of vortex motion solution is the set of equations of turbulent velocity fluctuation. In the flow field of the final stage motion of free turbulence the Reynolds number of turbulence is comparatively small, hence the non-linear terms in the dynamical equations can be neglected. Furthermore the size of vortices which form the turblent flow is regarded small, so within the range of each vortex the mean turbulent velocity and its gradient can be considered to be independent of the changes of the space coordinates. We now seek the following approximate solution of the linearized equations of turbulent velocity fluctuation; one part of the turbulent velocity fluctuation represents the final stage motion of homogeneous isotropic turbulence, while the other is proportional to the gradient of mean velocity, the latter part being smaller than the former. From this approximate solution the shearing component of the Reynolds stress is found to be directly proportional to the gradient of mean velocity. As a special example of the general solution we consider the case of the two-dimensional wake. Within the wake we put, furthermore, a plane grid normal to the plane of symmetry of the wake. This grid then creates in its downward stream a homogeneous isotropic turbulence field superimposed upon that of the wake. Our solution is applicable to places far downstream both from the body which creates the wake and from the grid. Since the flow here is nearer to the grid, so the turbulence level of the homogeneous isotropic turbulence would be higher than that of the wake. Consequently the conditions of the general solution can be satisfied. The present paper presents the solutions of the mean velocity and the mean squares of turbulent velocity fluctuation of the wake. These theoretical results can all be tested by experiment. On account of that we only discuss the final stage motion of free turbulence, the question how to lay down the upstream boundary condition of the flow field when solving the differential equations of the mean flow needs further consideration by other methods.

具有剪应力的自由湍流到下游相当远的地点由于能量的逐渐耗损将衰变成为类似均匀各向同性湍流的后期运动。如同处理后一种流动问题一样,我们现在根据湍流是由涡旋所组成的概念来求自由湍流的后期运动解。求涡旋运动解的动力学的基础是湍流速度涨落方程。在后期湍流场中湍流Reynolds数比较小,故方程中的非线性项可以略去。再考虑到组成湍流的涡旋尺寸比较小,在每个涡旋范围内平均湍流速度和它的坐标梯度可以近似地认为和坐标的改变无关。我们求线性化了之后的湍流速度涨落方程如下的近似解:涨落速度的一部分代表均匀各向同性湍流的后期运动:另一部分是和平均流速的坐标梯度成正比,后一部分要比前一部分为小。从这样的近似解得出的Reynolds剪应力是和平均流速的坐标梯度成正此。当作这一般解的特例我们求一个二元尾流的后期运动。在产生尾流的物体的后面还置放一个平面与尾流对称平面成垂直的栅格。这个栅格在它的下游可产生一个迭加在物体所产生的尾流场上的均匀各向同性的湍流(?)。我们的解是适用在离物体和栅格相当远处的后期运动,但此处的流场距栅格较近,所以栅格所产生的均匀各向同性湍流要比尾流的湍流度为高,因此一般解的近似条件是可以满足的。本论文给出尾流平均流速...

具有剪应力的自由湍流到下游相当远的地点由于能量的逐渐耗损将衰变成为类似均匀各向同性湍流的后期运动。如同处理后一种流动问题一样,我们现在根据湍流是由涡旋所组成的概念来求自由湍流的后期运动解。求涡旋运动解的动力学的基础是湍流速度涨落方程。在后期湍流场中湍流Reynolds数比较小,故方程中的非线性项可以略去。再考虑到组成湍流的涡旋尺寸比较小,在每个涡旋范围内平均湍流速度和它的坐标梯度可以近似地认为和坐标的改变无关。我们求线性化了之后的湍流速度涨落方程如下的近似解:涨落速度的一部分代表均匀各向同性湍流的后期运动:另一部分是和平均流速的坐标梯度成正比,后一部分要比前一部分为小。从这样的近似解得出的Reynolds剪应力是和平均流速的坐标梯度成正此。当作这一般解的特例我们求一个二元尾流的后期运动。在产生尾流的物体的后面还置放一个平面与尾流对称平面成垂直的栅格。这个栅格在它的下游可产生一个迭加在物体所产生的尾流场上的均匀各向同性的湍流(?)。我们的解是适用在离物体和栅格相当远处的后期运动,但此处的流场距栅格较近,所以栅格所产生的均匀各向同性湍流要比尾流的湍流度为高,因此一般解的近似条件是可以满足的。本论文给出尾流平均流速和速度涨落平方平均值的解。?

It is pointed out that the settlement due to deviatoric stresses is incorrectly disregarded in conventional methods of calculation. It is shown that the deviatoric tensor of stress can not be neglected, whereas the time dependent response of the soil skeleton to deviatoric stresses should be taken into account. On the base of his theory on the consolidation and flow of clay-layers "the author presents an analysis on several two dimensional problems. It is shown that the total settlement may bo considored...

It is pointed out that the settlement due to deviatoric stresses is incorrectly disregarded in conventional methods of calculation. It is shown that the deviatoric tensor of stress can not be neglected, whereas the time dependent response of the soil skeleton to deviatoric stresses should be taken into account. On the base of his theory on the consolidation and flow of clay-layers "the author presents an analysis on several two dimensional problems. It is shown that the total settlement may bo considored as consisting of three main compouents, viz. instantaneouss settlement, and settlements due to flow and due to consolidation. Settlement formulas are presented for large values of time. It is concluded that settlements in practice can not be predicted merely from oedometer tests. The consolidation in two dimensional problems turns out to behave quite differently from that of the classical one-dimensional case, as the soil can always deform laterally. The deviatoric stresses are responsible for the instantaneous deflection and the continuous flow of the clay mass.

本文指出現行的沉陷計算方法不考虑因均差应力(Deviatorie stresses)而产生的沉陷是不正确的。文中証明了均差应力張量不能忽略,而土壤的結構对均差应力的反应(与时間因素有关)则必須考虑。作者根据他自己的关于粘土層固結与流变的理論,提供几个二維問題的分析,証明了总沉陷可以分为三部分,卽瞬时下沉,因流变而产生的和因固結而产生的沉陷,并且提出了时間为很大数值时的沉陷公式。可以断言,在实际中,沉陷不能單从压縮試验来估計。在二維問題中,土壤的固结与古典的一維固結情形迥然不同,因为土壤总是有横向膨脹的。均差应力就是粘土在荷載下瞬时下沉(Instantaneous deflection)和不断流变的原因。

The paper presents the equation of the stress function for the two dimensional problems of the non-homogeneous isotropic medium, For the plane strain, For the plane stress, the temperature term changes to and The paper then leads to the problem of two mediums. It treats the case with the sudden change of modulus on the interboundary between two regions with different moduli. The stress function for the two sides of the interboundary, should keep and equal, and besides, and The equations...

The paper presents the equation of the stress function for the two dimensional problems of the non-homogeneous isotropic medium, For the plane strain, For the plane stress, the temperature term changes to and The paper then leads to the problem of two mediums. It treats the case with the sudden change of modulus on the interboundary between two regions with different moduli. The stress function for the two sides of the interboundary, should keep and equal, and besides, and The equations of stress function established together with the interboundary conditions, are the bases for solving problems with non-homogeneous isotropic mediums. The paper also auggests an alternative interboundary equation which satisfies the main jointing condition between two mediums. The stress function can also be applied to the mixed boundary condition problems. On those parts of the boundary, with known displacements, the boundary conditions for stress function can be expressed by: and Together with and being known in the loaded part of the boundary, thus the general boundary conditions for stress function in the mixed boundary condition problems are established. In this paper the author uses the gravity-dams as working example. The gravity-dam with different moduli for dam and foundation is taken as the first example. In another example the foundation is considered as absolutely rigid. The later gives rise of the mixed boundary condition problem. The calculation is done by method of finite fifference using relaxational technique. New relaxational patterns have been set up. The numerical calculations are worked out for the second example. foe results are checked by model grid-tests. The agreement between the calculated and tested rested results shows that the method is applicable to such kind of problem.

本文建立了非均匀介质弹性力学平面问题的应力方程式: 平面应力情况下:平面应力情况下温度项改为 当两个区域的弹性模量有突变时,交界张s的两侧的应力函数除应将及相等外, 并且要求: 根据这些方程式及交界条件建立了应用应力函数解非均匀介质的基楚。同时提出了一个保证 主要连接条件和变形协调的近似方程式。 本文所提的应力函数表达式可以应用到混合边界的平向题题上,在位移给定的条件下的一般 应力函数边界条件为: 及 因而建立了用应力函数解混合边界问题的条件。 本文以重力壩为例进行了具体计算,壩基为绝对刚性。这也是一个有一部分边界位移为零的 混合边界问题,计算使用差分方程及松弛法,为此建立了新的计算样板和松弛样板,计算的结果 和使用网格法试验的结果进行了比较。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关two - dimensional的内容
在知识搜索中查有关two - dimensional的内容
在数字搜索中查有关two - dimensional的内容
在概念知识元中查有关two - dimensional的内容
在学术趋势中查有关two - dimensional的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社