对称中心

对称中心固定长度的HL序贯区间估计

Sequential fixed-width confidence intervals of HL for symmetric center

对称中心必须与质量中心重合。

A center of symmetry must coincide with the center of mass .

圆的对称中心线就是直径。

The axis of a circle is its diameter .

稀土离子在NaRe（WO4）2纳米晶体中处于非反演对称中心位置。

The rare earth ions were found to be located at anti-inversion symmetry in the NaRe ( WO_4 ) _2 crystals .

无对称中心晶体中直接和级联三倍频效应

Direct and Cascading Third Harmonic Generation in Acentric Nonlinear Optical Crystals

对任何有对称中心的分子同样是对的。

The same holds true for any molecule with a center of symmetry .

论设计无对称中心的有机功能晶体

Review Designing Non-centrosymmetric Organic Function Crystals

球对称中心力场坐标算符平均值计算的特殊方法

A special method of calculating average value of coordinate operator in central force field of spherical symmetry

对称中心的自由曲面光学透镜的光学表面面形测量，是光学加工制造领域的难题。

Measurements of the shape of a non-revolving symmetrical free-form optical lens are an important optical fabrication problem .

注胶孔设在阳模的对称中心，溢胶孔设在阳模的四个角上。

The resin injection hole is set at the centre of the mold and overflow hole on the conners .

仅当两个要素具有公共对称中心线或轴线时，可以各画一半，并以中心线分界。

Only when two elements have the same symmetrical center lines or axes , can they be drawn half divided by center line .

梯度折射率球透镜是一种折射率以球心为对称中心，并沿球半径方向分布的球型光学元件。

GRIN ball lens is a spherical optical element with refractive index is symmetric around a spherical point and varies in spherical radius direction .

本文给出了较简便的运算方法，该方法具有一般性，能解决一类球对称中心力场的许多问题。

In this paper , a simple method of calculation is given , the method is common and can solve some questions of central force field of spherical symmetry .

板形及宽展数值模拟分析（1）轧后板带在宽度对称中心处的板厚明显要比边缘处大。

Plate shape and width extension numerical simulation : ( 1 ) . In width symmetrical area , the rolled plate was thicker than which at the edge of plate .

实验中得到风挡玻璃对称中心线上多点位移时间曲线及风挡玻璃表面的应变时间曲线。

The displacement history curves of different points in the symmetry center line of windshield glass and the strain history curves of many points on the surface of windshield glass are obtained .

如果将两光束的中心偏移，仍然可以得到较为理想的亚波长干涉条纹，并且亚波长干涉条纹的中心与两光束的对称中心重合。

If the centers of the two beams are not overlapped , we can still obtain the sub-wavelength interference fringes . The center of the fringes is positioned at the center of the two beams .

在丝径的激光高精度衍射测量中，激光的偏振方向、光束的几何属性和光束中心对衍射体对称中心的偏离都会影响测量的结果。

In the high accuracy diffraction measurement of laser for a tiny wire , polarization direction of laser , laser beam property , and deviation of the beam center from the wire center have an effect on the measuring result .

检测非对称凸轮中心线的最小方差法和寻优计算

The minimum variance method and optimizing calculation for detecting the unsymmetrical cam centerline

位于弗尼吉亚的非对称作战中心是个无人居住的地方，它被建造起来是为了满足美国军队训练士兵的需要。

The Asymmetric Warfare Training Center ( AWTC ) in Virginia is an uninhabited town built by the US Army to train its soldiers .

获得了在S（s）l[a，b]函数类中具有对称与中心对称性质的矩阵值两边留数插值问题的可解性条件，给出该问题所有解的一个线性分式变换表达形式。

The solvability criteria for the two-sided residue interpolation problems for functions in the class S ~ (( s )) _l with symmetry and centro-symmetry are obtained . A linear fractional transformation of the set of all solutions to the question is presented .

关于n次对称群的中心

About the Centre of the n-order Symmetric Group

对称的广义中心对称矩阵逆特征问题的最佳逼近

The Best Approximation of Inverse Eigenproblem for Symmetric Generalized Centro-symmetric Matrices

中心对称与反中心对称矩阵的一类反问题

A class of inverse problems for the centrosymmetric matrices and anti-centrosymmetric matrices

在该实验台上，对比研究了六个旋风分离器轴对称布置和中心对称布置两种型式。

Axisymmetric and centrosymmetric arrangement of six cyclones are investigated in the research .

无限长圆管中任意轴对称体绕中心轴旋转的小Re数问题

A low-Reynolds-number problem of an arbitrary axisymmetric body rotated in an lnfinite long tube

这里的铁路由非对称作战训练中心运营，建造铁路的总花费为9千万美元。

Costing $ 90.1 million to build , it is run by the US Army Asymmetric Warfare Group .

对称分布的中心来描述平均效应，而用宽度来描述异质性的程度。

The centre of this symmetric distribution describes the average of the effects , while its width describes the degree of heterogeneity .

介绍了以封头对称轴为中心沿径向设置立筋制作瓜瓣封头压制模具的过程。

The method of establishing radial support steel bars based on the symmetry axis of heads to manufacture the melon petal dies was presented .

水平地基的变形大致对称于线路中心线，斜坡地基的变形集中在下坡一侧边坡下；

The deformation of level foundation is generally symmetric of road central line and the deformation of slope foundation is mainly concentrated on the border side of the declivity .

用具有对称裂纹的中心圆孔宽板试件，研究了超载对结构应力集中产生的塑性变形区中的裂纹疲劳扩展速率的影响。

The overloading effect on fatigue crack growth rates for cracks located inside plastic deformation areas due to structural stress concentration , by using hole-in-plate specimens with symmetric cracks , was tested .