The general event horizon formula of black hole is given from null hypersurface equation.

从零曲面方程出发,出黑洞视界面的普遍公式.

This paper firstly deduces the recurrence formula of plastoelastic structure dynamic analysis.

本文首弹塑性结构动力时程分析的递公式。

Nonhomogeneity of different localized formation leads to nonlinearity formation resistivity equations.

文中指出地层局域化后的非均质致地层电率公式的非线性。

It should be noted that the method for updating multipliers is similar but different to the surrogate subgradient method, which is more robust and stable for accelerating the convergence rate.

大量的测试表明，在新的更新乘子的公式下，收敛性和稳定性更好。

A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.

用比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到计算傅立叶系数的一种简便方法.

This is the formula for a thick vertically faulted slab with such a large throw that the downthrow side makes no contribution to the gravitational force .

这是有直断层的厚板体的公式，其断层的落差是这样大，以致下落翼对重力场没有什么影响。

It indicates that a correct mass relation of a meson nonet (especially for the non ideal-mixing meson nonet) should incorporate the effect of the flavor-dependent quarkonia annihilation.

这表明，一个正确反映介子九重态（特别是非理想混合的介子九重态）成员间质量关系的公式，应该包含夸克偶素间的湮灭跟味道有关这种修正。

The properties of polytrifluorochloroethylene foils are found to change, when they are irradiated by X-rays.Experiments shows that irradiation will affect the charge storage in the sample.

测量聚三氟氯乙烯薄膜受X射线后电荷贮存能力发生的变化，样品表面电位变化的公式。

With convolution integral, a new formulation for describing the relation of soft X-ray reflectivity of multilayer with the different energy Monochromaticity of incident light is deduced.

利用数学卷积积分,理论上出一个在入射光不同单色性下精确计算多层膜反射率的公式。

Test results show that nonlinear vibration phenomenon does exist in micromachine vibration beams, and the calculated curves of the formulas derived accords with the measured data.

用出的公式得到的计算数据与试验数据吻合得较好。

Most of the work was based on experiment results, and some empirical formulas of shock wave peak pressure, electroacoustical efficiency, and plasma parameters were obtained.

这些机理的获得绝大部分基于实验结果，如已经获得一些冲击波峰值压力的经验公式，电声学效率，以及等离子体参数。

If you later add more equations to the paper before the referenced equation, all the equations will automatically renumber and the cross-references will update.

就算以后您在前面加入新的公式，它们都会自动编号，交叉引用编号也会自动修改。

It completes thoroughly the formulization of this method that Qin Jiushao limited the constant term in the numerical higher equation to be always negative.

秦九韶规定高次方程“实恒为负”,彻底完成这一方法的公式化。

A method to calculate new valence electronegativity and the ionicity of chemical bond of the transition metal elements is also presented here.

提出计算过渡元素价态共价半径的公式;提出计算过渡元素新价态电负性和化学键的离子性的方法。

Comparison was made to the isenthalp approximate method commonly used in engineering with the accuracy method, the feasibility of the en...

对于空气调节中常用的密度公式也进行分析对比。

In the paper, study on displacement law of blank hole for forming cylindraceous with bottom border by numerical simulation technology.

通过数值仿真研究带底孔的圆筒形件成形后底孔的变形规律,在此基础上建立带底孔的圆筒形件成形后毛料中心孔变形规律的经验公式。

Still, I remember glimpsing patterns in mathematics that seemed as bold and beautiful as a skyful of stars.

我还记得，当时看着数学里的数字¸公式就像满天的星星一样，遥远而美丽。

Four examples of catadioptrics are given to help understand the concepts of matrix method and master the formulae.

文中通过四个应用实例的计算,有助于掌握矩阵方法的基本概念和公式的运用。