释义 |
carferal|ˈkɑːfərəl| [f. the first syllables of car-bon, fer-rum (iron), and al-umina, of which substances it is compounded.] (See quots.).
1881Nature XXV. 62 The powers of carferal, well known as a filtering medium in the removal of ammonia from sewage. 1884Health Exhib. Catal. 65/1 Carferal, a new..filtering material compounded of alumina, iron and carbon. |