条件方程

In order to define this irrotationality condition mathematically, let us consider the equation of motion in terms of velocities.

为了从数学上确定此无旋条件，我们考虑以速度为未知函数的运动程。

A class of nonconforming finite elements are applied to hyperbolic equation with semidiscretization on anisotropic meshes, the optimal error estimates are derived.

摘要在各向异条件下，讨论了双曲型程的一类非协调有限元逼近，给出了半离下的最优误差佑计。

The one dimensional continuity equations of n-on-p planar PN junction are solved at different boundary conditions. Generalized solutions of photocarrier concentration are given in this paper.

摘要一维情况下平面PN结的连程进行了求解，给出了不同边界条件下光生载流子浓度的一般形解，并结果进行了分析讨论。

The condensability of liquid,the Westphal's effect and the continuous flow condition are not only comprehensively considered,but also the dynamic property of the ball valve being established.

结合现场试验,根据直线电机采油泵运动特,综合考虑了液体的可压缩、魏氏效应、液体连流动条件和球阀的动力特,建立了直线电机采油泵球阀运动规律的精确运动微分程组。