Preparation of cheap aluminium dihydric phosphate and its application in refractories

The deduction of the helix plane equation in molecule and the common applying of dihedral angle

分子中螺旋平面方程的推导与二面角的一般应用

The determination of dihedral angle is of extensive significance in the fields of metal materials science and metallurgy.

两面角的测定在金属材料、冶金等领域具有广泛的意义。

A Simple and Convenient Solution of the Dihedral Angle Between the Oblique Inserted Pipes

斜插管两面角的简便解法

The adjustment of the polarization dihedral angle for the antenna of earth stations

地球站天线极化夹角的调整

The another class of inequality about e~ n spatial dihedral angle

E~n空间二面角的另一类不等式

Automatic constructing triangular surface and mesh simplification based on dihedral angle.

三角网格模型的自动化建模及基于二面角的网格简化。

Using dihedral angle series of protein for protein structure comparison

利用蛋白质的二面角序列对蛋白质结构比对

Dihedral group ( I_2 ( m)) and Coxeter group of group H_3, H_4) are noncrystallographic in irreducible finite Coxeter group.

根据分类，非Weyl群的不可约有限Coxeter群有二面体群I2（m）和群H3，H4。

Considering the action of dihedral group on some concret array spaces, this paper studies the symmetry of array space, computes the cycle index and points out some applications of cycle index.

本文通过将二面体群作用在一些具体的阵列空间上，讨论阵列空间的对称性，计算二面体群所对应的循环指标，并且指出循环指标的一些应用。

The Dihedral Group D_n and a kind of Omni_Direction Permutations on Z_n

二面体群D n与Z n上的一类全向置换

This paper give the resolution of a combinatorial calculating problems by ways of calculating the indexes of dihedral group and regular polyhedron group.

通过对二面体群、正n面体群等指标计算给出一系列组合计数问题的解答。

It is also proved that Cayley graph with 3 degree on a dihedral group is rational.

同时也证明了三度二面体群上的Cayley图是有理的。

Hopf Ore Extension over a Dihedral Group and Its Hopf Algebra Structure

二面体群上的Hopf Ore扩张及其代数结构

Finally, structure of Lie superalgebra associated with dihedral group is discussed.

最后，讨论了与二面体群相伴的李超代数的结构。

The dihedral corner reflector with wing and fuselage joint of aircraft is a very strong electromagnetic source in a wide angular range.

飞行器翼身接合部构成的二面角反射器是很强的电磁散射源。

Calculation of the Scattered Field From a 2-D Perfectly Conducting Dihedral Corner Reflector

栅的散射场研究二维理想导体角反射器电磁散射场的计算

But traditional RCS computation method is only suit for the ideal dihedral corner reflector.

但是传统的计算方法仅仅适用于理想二面角反射器。

Physical Optics Approximation to the Range Profile Signature of a Dihedral Corner Reflector

基于物理光学方法二面角反射器一维距离像特征信号计算

Complex ray analysis of dihedral corner reflector coated with radar absorbing materials

吸波涂层角反射器RCS的复射线分析

The major scattering resource in top direction is radar antenna or infrared head, in side direction is dihedral reflector formed by missile wings, missile body and wings.

其主要散射源在头向为雷达天线或红外导引头，在侧向为弹翼之间的二面角以及弹身、弹翼。