TEM观察到这些金颗粒具有很好的几何对称性。
TEM observation indicates that these Au nanoparticles possess good symmetry in geometry morphology.
分数几何对称模型已用于分析这类反应的一般规律。
The fractional geometry symmetry model has been used to analyze these kinds of reactions.
从一个简单问题出发,引出关于磁场零值点的一个判据,该判据与载流系统的几何对称性有关。
A criterion of zero magnetic field point, which is related with the symmetry of current-carrying system, is derived from a simple problem.
在阴极射线的激发下,该合成钻石发射强蓝白荧光,并显示出独特的几何对称生长分区及镶嵌结构。
Stimulated by cathode ray, this synthetic diamondproduces strong blue-white fluorescence and displays its specific cathodoluminescent geometric patterns, growth subdivisions and mosaic structure.
证明在静态情况下,几何对称试件和几何非对称试件的轴线两侧均具有对称的应力和位移分布状态;
The results show that the static stress and displacement states are symmetrical on opposite sides of the axis whether the sample is symmetry in geometry or not.
首先分析了格林函数的场点源点对称性和几何对称性,并由此入手,对对称性在速度势求解矩阵中的应用进行了分析。
Firstly, the Green function's source point and field point symmetry and geometry symmetry are discussed, and based on these, symmetry properties used in the matrix solving are discussed.
与此同时,尽管委员会之间争吵不休,资金匮乏,圣保罗还是矗立了起来,就像当初的沙特尔一般,雷恩依旧忠于柏拉图和几何对称。
Meanwhile, in spite of wrangling committees and money shortages, st Paul's rose, with Wren holding fast, as they had at Chartres, to Plato and geometry.
颅骨图像在几何上具有对称性特征,根据转动惯量在几何对称性对象上所具有的良好性质,提出一种改进的计算对称轴的算法,该算法利用计算机语言编程实现。
A modified computing symmetry axes algorithm is proposed for the geometry symmetry good property of skull image and the moment of inertia on the symmetry objects.
几何规定旋转对称只能以二次,三次,四次和六次存在。
Geometry dictates that only two -, three -, four - and six-fold rotational symmetry can exist.
一想到被卷入混沌初始的漩涡,我的恐惧与愉悦是何等激烈!那无序的矛盾对称正是混沌独有的几何结构,没有形式亦没有意义!
How great my terror and my joy at the thought of being dragged into the vortex of initial chaos, that Pandemonium of paradoxical symmetry?
然而几何学告诉我们,只有二次、三次、四次和六次的旋转对称是能够存在的形式。
That is impossible. Geometry dictates that only two-, three-, four- and sixfold rotational symmetry can exist.
自动中心转线任何揭露,部分可见的或对称的几何块一点。
Automatically center the TransPose line on any unmasked, partially visible or symmetrical piece of geometry with one click.
迎角、旋成体的外形,尤其是头部的几何形状是细长前体出现非对称涡的关键因素。
Angle of attack and nose shape of bodies are key factors that asymmetric vortex occurs over slender bodies.
在反求工程中,对称面提取对于点云的几何模型重建具有重要意义。
Symmetry plane extraction is very important to the geometric model reconstruction of an object in reverse engineering.
我们获得在图象导致的几何限制被SOR结构对称物产。
We derive the geometric constraints induced in the image by the symmetry properties of SOR structure.
系统地研究了来自于射影几何中平面曲线运动的1 + 1维非线性方程的对称代数。
The symmetry algebras of 1 + 1 dimensional nonlinear evolution equation arising from the motion of plane curve in affine geometry are systematically studied.
讨论了能够产生对称连杆曲线的铰链四杆机构的几何特征。
In this paper the geometry properties of the plane four-bar linkage which can generate a symmetric path are discussed.
单位圆上的拟交比同胚和拟对称函数,都是拟共形映照边界值的一种几何表征。
Quasihomographies and quasi-symmetric function on the unit circle are geometric characterizations of boundary value of quasi-conformal mapping.
整个结构为立体对称几何形态并体现着与自然的趋向性。
The sculpture is a geometric volume out of symmetry or similitude with nature.
背斜形态多为复式箱状背斜和不对称的斜歪背斜,分别与断层弯曲背斜和断层扩展背斜的几何形态一致。
The major morphology of the anticline is multiple box-shaped or asymmetry inclined, mostly, and it is similar to that of fault-bend fold and fault-propagation fold.
从对称性原理出发,证明了能量守恒定律,并对时间平移对称性与能量守恒作了简单的几何表述。
From the principle of symmetry, law of conservation of energy is proved. And have a simple geometric express for time translation symmetry and conservation of energy.
并对时间平移对称性与能量守恒作了简单的几何表述。
And have a simple geometric express for time translation symmetry and conservation of energy.
人们看到的不是有规则的几何形状,例如一些不对称的洗脸盆和浴缸。
People can see that the rules are not geometric shapes, such as asymmetric washbasin and bathtubs.
该算法既具有基于几何展开方法的优点,又克服了“几何映射法”必须寻找对称线的困难,使得一步成形模拟方法更具有实用性。
This algorithm has the merits of geometry expanding method and overcomes the difficulty for searching symmetry curve confronted by the "Geometric Mapping" method.
本文分别将华氏自伴矩阵几何与对称矩阵几何基本定理推广到无限维的情形。
We extend Hua′s fundamental theorems of the geometry of self-adjoint matrices and symmetric matrices to the infinite-dimensional case.
由计算结果可以得到,几何非对称结构对多频率段降噪效果好,而改变壳面的曲率半径对壳的固有频率提高较大。
Based on results, the geometrical asymmetry shell has obvious effect about reducing noise in large range of frequencies, and change radius of curvature can increase eigenfrequency obviously.
根据晶体的对称性、衍射几何和衍射规律,研究了复杂的发散X射线晶体衍射。
Acoording to the crystal symmetry, diffraction geometry and the diffraction laws, the complicated divergent beam X-ray diffraction has been studied.
对于几何非对称试件规则断裂实现中的支座调整问题,本文初步提出了一种步进电机控制系统。
On the problem of supports adjusting in the regular fracture realization of geometrically asymmetric sample, this dissertation proposes a kind of stepping motor control system tentatively.
对于几何非对称试件规则断裂实现中的支座调整问题,本文初步提出了一种步进电机控制系统。
On the problem of supports adjusting in the regular fracture realization of geometrically asymmetric sample, this dissertation proposes a kind of stepping motor control system tentatively.
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