The dot product of the ▽operator with a vector defines the divergence of that vector.
算子▽与一个矢量的点积定义为这个矢量的散度。
First of all, the report introduced evolution, achievments and problems in the study of anisotropy in the inner of earth. The first-order hyperbolic system of equations is work out, which is used to describe the wave motion in 2D transversely isotropic media. Utilizing the characteristics of free-divergence, We have imposed MacCormack theme that is used to simulate multicomponent records in anisotropic media and have developed a fast high order vectorized finite-difference algorithm adapted for the vector supercomputer.
本文首先阐述了地球内部介质各向异性研究的沿革、成就和问题，接着给出了描述二维横向各向同性介质中波动的一阶双曲型方程，利用其自由发散特性，构制了各向异性介质中多波多分量地震记录数值模拟的MacCormack算式，导出了适用于并行计算的二维横向各向同性介质中波动的有限差分模拟算子，该算子具有可并行化计算、相位差小等优点。
The appearance of withdrawal vector potential T shows that the unique solution of vector potentials obtained via defining its divergence is not a unique method.
退化位T的出现，表明用给定矢量位的散度来获得唯一解并不是唯一的方法。
An important result, the contribution to the amplitude of the process π°→γγ from the valence Fock state is one half of the total amplitude, is proved by using a gauge invariant identity of the divergence of the axial vector current.
利用规范不变的轴矢流散度等式证明了一个重要的推论，即在π~0→γγ过程中价夸克福克态对振幅的贡献占总振幅的一半。
Based on the convergence field of wet Q-vector divergence, the intrinsic mechanism of Meiyu front heavy rain is discussed, and a new thinking for the forecast of Meiyu front heavy rain is given.
从湿Q矢量散度辐合场这个角度探讨了梅雨锋暴雨的内在机理，并给出了梅雨锋暴雨具体预报的新思路。
The results show that there is a good corresponding relationship between Q-vector moist frontolysis function, Q-vector divergence, vapor flux divergence and the snow-storm region of the Qinghai Plateau, and this has a good implication for the snowfall forecast in the Qinghai Plateau.
结果表明：Q矢量湿锋生函数、Q矢量散度场和水汽通量散度场与青海高原暴雪区有较好的对应关系，对青海高原的降雪预报有指示作用。
Remember, the divergence of a vector field What do these two theorems say?
向量场，的散度，这两个定理说了什么呢？
Research on the figure of electric vector The T - Ω method is introduced and a general method of determining the electric vector potential T with zero divergence is presented, so the extremum problem of vector-form complementary functional is reduced to ordinary scalar-form functional.
本文采用T&Ω算法，提出了一种确定向量位T的具体方法，使向量形式的补泛函极值问题得以转化为标量形式的通常泛函极值问题，从而完成了互补途径的后验误差估计。
So, the divergence theorem gives us a way to compute the flux of a vector field for a closed surface.
散度定理为我们提供了一种，计算向量场通过闭曲面的通量的方法。
By considering each component of vector functions, we transform Beltrami system to a class of elliptic systems of divergence type.
从考虑向量值函数的每一个分量出发，将Beltrami方程组转化为一类散度型椭圆组；
The divergence of a vector function is the scalar function.
矢量函数的散度是一个标量函数。