percolation
過濾,浸透
per·co·la·tion /ˌpɝkəˈleʃən/ 名詞
濾過,滲透,滲濾
percolation
滲濾
Per·co·la·tion n. The act or process of percolating, or filtering; filtration; straining. Specifically Pharm., the process of exhausting the virtues of a powdered drug by letting a liquid filter slowly through it.
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percolation
n 1: the slow passage of a liquid through a filtering medium;
"the percolation of rainwater through the soil"; "the
infiltration of seawater through the lava" [syn: infiltration]
2: the act of making coffee in a percolator
3: the filtration of a liquid for extraction or purification