查询词典 equations

Inspired by this section, in section 5.2,we explore some basic topological degree properties of A-proper mapping in Menger pn-space. By its homotopy invariance, we prove the existence of solution for some equations.

受这节内容的启发，在第5.2节，我们首次在Menger pn-空间中研究了A-proper映射的拓扑度理论，并利用其同伦不变性获得了几类方程解的存在性。

In this paper, we study the existence of solutions for high-order ordinary differential equation systems and delay differential equations, subject to different conditions.

本文研究高阶非线性常微分方程组和高阶非线性时滞微分方程在不同的假设条件下正解的存在性和多重性。

In recent years, with the development of modern science and technology, people have put forward a great many new neutral difference equations in natural science and social science as biology, economics, demology, physics and control theory, etc.

近年来，随着科学技术的发展，在自然科学与社会科学的许多学科中，如生物学、经济学、人口学、物理学以及控制论等，人们不断提出大量新的中立型差分方程。

The stability of the open ladder inversionless lasing system was analyzed by using the steady state solution of the density matrix motion equations of this system and the motion equation for the laser field.

利用开放的ladder型无反转激光系统的密度矩阵运动方程组的定态解和激光场运动方程分析了系统的稳定性。

Based on the density matrix equations and by means of the iteration method,the optimization of operating gas pressure was studied theoretically.

运用半经典密度矩阵理论，通过迭代法计算了光泵腔式NH3分子亚毫米波激光器的最佳工作气压。

Equilibrium equations of a binary mixture for molecular distillation were derived on the basis of heat and mass transfer in liquid films. Simulation on separation of tocopherol from rapeseed oil deodorizer distillate was carried out.

通过对分子蒸馏液膜表面流体流动和传质、传热分析，建立了二维分子蒸馏模型的传质和传热方程，并对菜籽油脱臭馏出物中维生素E的分离进行模拟。

Using algebraic dynamical method, we have obtained the exact analytical solutions to the time dependent Schroedinger equations.

我们用代数动力学方法对以上两种系统进行求解，得到了严格的解析解。

These two problems are converted to mathematical problems of solving some matrix inequalities and Riccati equations which are dependent on the time delays.

它们的可解充分条件可以化为与时滞相关的矩阵不等式和 Riccati方程的形式。

Based on pedagogical experience, a scheme of diagrammatic representation of fundamental dependent equations relating thermodynamic functions is suggested.

通过多年教学实践，归纳出热力学函数间基本关系式的图示法。

This was demonstrated by a simulation with spatial dependent rate equations and experiment results of a plano-concave Nd:YVO4 laser.

我们利用一个纵向相关的速率方程式来描述与研究这个在平凹共振腔掺钕钒酸钇雷射的实验。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。