n. an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
n. a copy made with carbon paper
词态变化
复数形式:carbons
常见例句
1
n a state in which the level of carbon dioxide in the blood is lower than normal
2
supplied with carbon dioxide
3
See Carbonic acid.
4
a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine
5
alter by exposure to air with conversion at least in part to a carbonate
