定义方程

You can also use constants in the definition of the equation goal.

你能也在方程目标的定义中不断的使用。

We find that the naturally defined spin current obeys the covariant continuity equation.

我们发现，普遍定义的自旋流满足协变形式的连续性方程。

With the viscosity solution of Eikonal equation, a method is proposed on the 3D reconstruction of convex surface based on an image. Then, the additive saddle surface and multiplicative saddle surface are defined.

利用Eikonal方程的粘性解给出了基于单幅图像的凸面三维重建算法；定义了2类鞍面--加性鞍面和乘性鞍面。

In this paper,from the global viewpoint we first define the nonlinear control system on a two dimensional surface in the three dimensional Euclidean space, give the represwentation of the state equation under a loca coordinate sysgtem of the surface, and study the connectin between the equilibrium state of the nonlinear system and the egodesics on the surface.

我们首先从整体化的观点定义了一种建立在三维欧氏空间的二维曲面上的非线性控制系统，并给出了在曲面的局部坐标系下非线性系统状态方程的表达式，研究了非线性系统的平衡态与曲面的测地线之间的关系。

According to the definition of the minimum zone method, the mathematical model is presented for evaluating flatness error and establishing datum plane equation.

分析了常用的近似评定法(三点法、对角线法、最小二乘法等)存在的局限性，根据最小区域法的定义，给出了基准平面方程及平面度误差评定目标函数数学模型的建立方法，并举例说明了采用Matlab进行平面度误差的计算。

The first section is to introduce some corresponding basic definiens and properties on the fractional calculous. The rest of the chapter is to present solving methods for the approximation solutions of the nonlinear fractional differential equations and their application.

首先介绍了本章涉及到的分数微积分的定义及其性质，然后介绍了非线性分数阶微分方程近似求解的方法及其应用。

The S-L-E experiment data for the three groups of isomers were treated by using improved UNIFAC equation with new defining of some UNIFAC groups, we got better result.

采用改进的UNIFAC方程，利用新定义基团的方法，对已测定的同分异构体物系的二元固液相平衡数据进行了处理并取得了较好的回归结果。

The linerarized step contains solving differential equation, defining feedback control and new coordinate.

其精确线性化步骤含：求解微分方程、定义反馈控制及反馈线性化后的新坐标。

The pressure reduction principles with expander and with throttle regulator are respectively discussed, and their exergy depreciatory equations that can be use to calculate the power in pressure reducing processes are respectively deduced.

第二章对高压气动容积减压的新概念进行了定义；利用热力学的能分析法和火用分析法，推导出了对应节流减压和容积减压的能量特性方程和火用损失表达式，为减压过程中能量计算提供了有效工具；计算表明高压气动采用容积减压方式比节流减压方式有明显的节能效果。

The transformed value function is proved to satisfy dynamic programming partial differential equation with the coefficient of risk aversion.

给出了值函数和风险规避系数的定义，并通过对值函数进行非线性变换，证明了变换后的值函数满足带有风险规避系数的动态规划偏微分方程。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。