the slow passage of a liquid through a filtering medium; "the percolation of rainwater through the soil"; "the infiltration of seawater through the lava"
濾材を通した液体の遅い移動
percolation
the act of making coffee in a percolator
パーコレーターでコーヒーを入れる行為
percolation
the filtration of a liquid for extraction or purification