Numerical simulation of pollutants' diffusion in air has been adopted widely, but the false diffusion occurring in simulation is always an important factor affecting the accuracy of the results.
用数值模拟的方法预测污染物在大气中的扩散已经被广泛采用，但数值模拟产生的伪扩散一直是影响模拟结果精度的重要因素。
Numerical simulation of pollutants' diffusion in air has been adopted widely, but the false diffusion occurring in simulation is always an important factor affecting the accuracy of the results.
用数值模拟的方法预测污染物在大气中的扩散已经被广泛采用，但数值模拟产生的伪扩散一直是影响模拟结果精度的重要因素。
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