针对计算高精度需要，纳入了适合非均匀网格、采用附加源项实现的QUICK格式。
QUICK method, which was adapted to non-uniformly grid and implemented by an additional source, was adopted for high-required precision.
提出了求解含源汇项非定常对流扩散方程的一类高精度格式。
A high order accuracy compact difference method is presented for soling unsteady convection equation with source term.
改进了原模式的盐度差分格式和方程，采用二阶精度差分格式并引入了物理扩散项。
Modifying the salinity difference format and salinity equations of the original model, the present model USES the second-order accurate difference format and introduces the term of physical diffusion.
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