该模型采用扇形网格和正方形网格相结合，以扇形网格为基本框架，而将面源区和近源区划分成正方形网格。
In the model, the basic grids are sectorial ones, but the source area and near source area is regularly shaped to rectangular grids.
该模型采用扇形网格和正方形网格相结合，以扇形网格为基本框架，而将面源区和近源区划分成正方形网格。
In the model, the basic grids are sectorial ones, but the source area and near source area is regularly shaped to rectangular grids.
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