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。
Traditional method to assess risk for optical imaging reconnaissance satellite is satellite-on-air forecast, and it is simple to operate but has false alarm.
传统评估光学成像侦察卫星的威胁一般是采用卫星临空预报方式,这种方式虽然操作简单,但是必然存在一些虚警现象。
Traditional method to assess risk for optical imaging reconnaissance satellite is satellite-on-air forecast, and it is simple to operate but has false alarm.
传统评估光学成像侦察卫星的威胁一般是采用卫星临空预报方式,这种方式虽然操作简单,但是必然存在一些虚警现象。
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