一个是关于压力的流动方程，另一个是关于含盐浓度的对流方程。
One is fluid equation for the pressure, the other convection-dispersion equation for the saltwater concentration.
考虑这个分量以后，压力不再符合静水压力分布律，据此可以得到高阶浅水流动方程。
In this case, the flow should be described by high-order sallow water flow equation.
模型中包括了流动、传热和传质方程。
The model includes the fluid flow, heat and mass transfer equations.
流动儿童；人格特征；心理健康；结构方程模型。
Migrant children; Personality; Mental health; Structual equation model.
流动儿童；人格特征；心理健康；结构方程模型。
Migrant children; Personality; Mental health; Structual equation model.
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