Permeation

[,pә:mi'eiʃәn]

解释:

(noun.) the process of permeating or infusing something with a substance.

录入:沃尔特--From WordNet

解释:

(n.) The act of permeating, passing through, or spreading throughout, the pores or interstices of any substance.

手打:珀西瓦尔