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单词 carferal
释义

carferaln.

/ˈkɑːfərəl/
Etymology: < the first syllables of car-bon, fer-rum (iron), and al-umina, of which substances it is compounded.
(See quots.).
ΚΠ
1881 Nature 17 Nov. 62/2 The powers of carferal,..well known as a filtering medium in the removal of ammonia from sewage.
1884 Internat. Health Exhib. Official Catal. 65/1 Carferal, a new..filtering material compounded of alumina, iron and carbon.
This entry has not yet been fully updated (first published 1888; most recently modified version published online September 2019).
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n.1881
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