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

从零曲面方程出发,导出了黑洞视界面普遍公式.

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

本文首选推导了弹塑性结构动力时程分析递推公式。

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

文中指出地层局域化后非均质导致地层电导率公式非线性。

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.

大量测试了，在新更新乘子公式下，收敛性稳定性更好。

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.

用比较直接方法证幂级数数在收敛域内可以逐项微分公式；并得到了计算傅立叶系数种简便方法.

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 .

这是有直断层厚板体公式，其断层落差是这样大，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，个正确反映介子九重态（特别是非理想混合介子九重态）成员间质量关系公式，应该包含夸克偶素间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.

测量了聚三氟氯乙烯薄膜受X射线辐照后电荷贮存能力发生变化，推导了辐照样品面电位变化公式。

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,理论上推导出个在入射光不同单色性下精确计算多层膜反射率公式。

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.

用推导出公式得到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.

这些机理获得绝大部分基于实验结果，如已经获得了些冲击波峰值压力经验公式，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”,彻底完成了这方法公式化。

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

提出了计算过渡元素价态共价半径公式;提出了计算过渡元素新价态电负性化学键离子性方法。

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密度公式也进行了分析对比。

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

通过数值仿真研究了带底孔圆筒形件成形后底孔变形规律,在此基础上建立了带底孔圆筒形件成形后毛料中心孔变形规律经验公式。

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

我还记得，当时看着数学里数字¸公式就像满天星星样，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计算,有助于掌握矩阵方法基本概念公式运用。