面对称

The influence of nozzle outlet angle on the fluid flow and free surface oscillation in the mould was analyzed.

分析研究了不同侧孔倾角对对称多侧孔水口浇注大方坯结晶器内流场及自由液面波动的影响规律。

Results show that ability of forming Icosahedral symmetry of pure liquid metals is weaker than that of alloys.

研究结果表明，过冷液态纯金属形成廿面体对称的能力弱于过冷液态合金。

C60 molecule is an icosahedral and has a symmetry of Ih,which consists of s...

C60分子是一个由60个等价碳原子构成的截面二十面体，具有点群对称Ih。

C60 molecule is an icosahedral and has a symmetry of Ih,which consists of sixtycarbon atoms.

C60分子是一个由60个等价碳原子构成的截面二十面体，具有点群对称Ih。

Purified virus was nonenveloped,icosahedral symmetry with a triangulation number of 3,and 33-37nm in diameter.

该病毒粒子无囊膜，呈20面体对称，直径一般为33-37nm。

The third way was deduced from the equation that the imaginary part of resistance is zero when it is.

通过在耦合微带谐振器对称面加电壁和磁壁法、用网络的转移矩阵计算插入损耗L法、以及滤波器谐振时回路的阻抗虚部为零的方法，推导了滤波器级间耦合系数的计算公式。

From K-G Equation and Dirac equation,using 2-D invariant line element, the radius equation and event horizon formula of particles are obtained.A simpler method to the research of quantum effect of the scalar and vector particles in black hole with spherical symmetry is singgested.

分别从K-G方程和Dirac方程入手，利用简化后的二维不变线元，直接给出了粒子的径向方程和视界面方程公式，为研究球对称黑洞中标量粒子和矢量粒子的量子效应提供了一个更简单的方法。

And this supplies possibility for crystal field calculation of coordination octahedron in all kinds of symmetry.

对各种对称下配位八面体晶体场能量的计算提供了可能。

A detailed investigation was conducted in this paper on the flow asymmetry and its influencing factors over an ogive slender body model, incorporated with surface pressure measurement, skin oil flow pattern visualization, hot wire dynamic signal acquasition and other relevant approaches, in a low turbulence wind tunnel.

现代先进战斗机和战木导弹常具有细长前体，大攻角条件下前体背风面会形成非对称涡结构，从而产生很大的侧向力和偏航力矩，这会严重影响飞行器的可操纵性和飞行安全。

In addition to the unusual symmetry, Penrose tilings reveal a pattern of overlapping decagons.

除了不寻常的对称，彭罗斯面砖揭示了重叠decagons模式。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。