An expression is derived using basical concepts of physics ( i. e. mass conservation ), to define the relationship between sediment transport rate and vertical flux of sediment to the seabed.
从基本的物理概念和物质守恒定律导出了海底沉积物通量的计算表达式，应用该式取得了与实际海域相符的海底冲淤分布图。
But, also, if you sum the flux through the surface of each little piece, well, you will see that you will be integrating twice over each of these vertical cuts.
如果对这些小块表面通量求和，就会看到，这些垂直切口积分了两次。
On the basis of vertical helicity, we define three parameters, namely, the divergence flux, moisture vertical helicity and moisture divergence flux.
在垂直螺旋度的基础上，定义了散度通量，水汽垂直螺旋度和水汽散度通量三个宏观物理量。
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