invasion: n.1.侵入，侵略。2.侵害，侵犯。3.【医学】发病，发作。短语和例子an invasion of locust 蝗虫的侵袭。 cultural invasion 文化侵略。 an invasion of disease 疾病的侵入。 make an invasion upon 侵入，袭击。 invasion of sb.'s privacy 非法干预某人的私事。
This paper presents a review of the moisture transfer theories in porous media during drying processes in the last century . then an innovative pore network model in drying based invasion percolation theory and pore network theory essentially different from the classical continuum model is developed . moisture transfer characteristics in porous media during drying process are studied under isothermal and absence of gravity 本论文首先回顾了近一个世纪以来多孔介质在干燥过程中内部湿分迁移理论，指出孔道网络理论在多孔介质干燥研究中所具有的独到优势，继而借助侵入渗流理论所取得的成果，结合孔道网络理论，分析了干燥本身的湿分迁移特征，模拟研究了多孔介质在等温条件下不考虑重力时的干燥过程。
