查询词典 structure equations

The observational equations have been derived using the three methods above which are based on high-low SST and low-low SST observational data respectively, at the same time, the shortages and merits of these three methods are analyzed. 3The problem of gravity field recovery can be attributed to the solution of over determined system of equations.

本文分别以高低卫卫跟踪和低低卫卫跟踪观测数据为基础，导出了基于上述三种方法的观测方程，并分析了它们的优缺点。3重力场恢复最终归结为超定线性方程组的求解问题。

In the low-low satellite to satellite gravity mission, the intersatellite range and range-rate data are the observable values, while the intersatellite acceleration can be derived from the range-rate through digital differential. Using acceleration data, people can avoid solving the variation equations of the satellite motion and simplify the observation equations. But on the other side, the digital differential will amplify the observation noises and finally affect the solved geopotential accuracy.

低低卫星跟踪卫星的观测量是两低轨卫星的星间距离或星间速度，星间加速度由星间速度通过数值微分导出，用星间加速度作为观测量可以避免解算卫星运动的变分方程，简化观测方程的建立，但数值微分会使观测噪声放大，从而影响重力位的解算精度。

One simple fluid model, magnetohydrodynamics , treats the plasma as a single fluid governed by a combination of Maxwell's equations and the Navier Stokes equations .

一个简单的流体模型，磁流体，把血浆作为一个单一的流体管理相结合的麦克斯韦方程组和 N - S方程。

In order to get the stress analytic solution, the stress equations are deduced with conformal mapping method and residue theorem, the defaults of equations in the reference are corrected. This method overthrows the obstacle in the engineering stress calculation for the flat receptacle with conformal mapping.

为了建立有实际意义的扁挤压筒应力解析解，本文结合单连体复变函数保角映射法和留数定理推导出受内压力作用的扁挤压筒的应力求解公式，更正了国外文献中相应公式的错误，开发了受内压扁挤压筒的应力计算程序，实现了应力计算的程序化。

Schrodinger equations are important equations in the mathematical physics,they de-scribe many phenomena of p...

〓方程是数学物理中的一类非常重要的方程，它解释很多物理现象。

In the second part, we study the solution of some matrix equations in field theory and module theory,i.e., it is determined whether matrix equations have solutions in a field.

第二部分我们是通过代数的域论和模论来研究矩阵方程的解的问题，即判断一个矩阵方程在在域上是否有解。

The theory of maximal monotone operator is one of the most importance successes in the area of nonlinear analysis. It provides a powerful general framework for the study of nonlinear partial differential equations, nonlinear integral equations, control theory, optimization. Practically, it has be applied abroad in physics, economics and engineering.

极大单调算子理论是非线性分析领域的有效工具之一，已被广泛应用于非线性偏微分方程、非线性积分方程、控制论、最优化理论等学科，在物理学、经济学、工程学等应用学科也有着广泛的应用。

By means of the qualitative theory and method of delay differential equations, the weak conditions for the bound-edness of the system are obtained. By use of differential mean value theorem and computational techniques on delay differential equations, we show that the system is globally asymptotically stable under condition for the boundedness.

用时滞泛函微分方程的定性理论得到了系统有界的较弱的条件，并运用微分中值定理及有关时滞微分方程的计算技巧，我们获得了在系统有界这样弱的条件下就能保证系统全局渐近稳定的结论。

The fix point of solutions and the derivatives of solutions of comples meromorphic function coefficents higher order of comples homogeneous linear differenliad equations are studied,and get two results of fixed point of homogeneous higher order linear differenliad equations with Meromorphic Function Coefficents,the results obtained generalize the related results of some authors.

研究了复域线性微分方程的解及其解的导数的不动点与超级问题，得到了亚纯函数系数的齐次线性微分方程的解及其解的导数的不动点的一个结果，所得结果推广了一些相关结果。

Singular integral equations with complex translations on smooth closed curve are discussed if equations satisfy regularity condition. And the solutions are obtained by the method of regularization.

在正则型的假设下，讨论了封闭曲线带复平移的奇异积分方程，并利用正则化方法得到方程解的表达式，所得结论补充了带平移的奇异积分方程的理论。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。