Sudden migration

骤徙───Sudden migration

The results show that the warning model can simulate and forecast the pollutant migration process under the conditions of sudden pollutant leakage accidents.───结果表明，所建立的预警模型能够模拟和预测突发污染物泄漏事故条件下污染物迁移过程。

that a sudden shake can promote gas migration.───外界突发性的振动能够增加天然气运移的有效性。