filtrationKK [fɪlˋtreʃən] /fɪlˈtɹeɪʃən/发音名词1过滤、滤除The water goes through several stages of filtration before bottling.这些水在装瓶前要经过好几道过滤程序。2过滤作用、滤过生物、地质The kidneys maintain a steady rate of filtration throughout the day.肾脏整天都维持稳定的过滤作用。用这个字练口说→