device that removes something from whatever passes through itそれを通過するものを何でもそこから取り除く装置瀘過器
remove by passing through a filter; "filter out the impurities"フィルターを通すことで除去する濾過
an electrical device that alters the frequency spectrum of signals passing through it通り過ぎる信号の周波数スペクトラムを変えるフィルタ
run or flow slowly, as in drops or in an unsteady stream; "water trickled onto the lawn from the broken hose"; "reports began to dribble in"雫や不安定な流れのように、ゆっくり走る、またはゆっくり流れる滴下