| 释义 |
碳tàn非金属元素,符号C(carbonium)。有金刚石、石墨和无定形碳三种同素异形体。化学性质稳定,在空气中不起变化,是构成有机物的主要成分。在工业上和医药上用途很广。{carbonium (C); nonmetallic element in three allotropes (diamond, graphite and amorphous carbon), of stable chemical property and not change in air, being a major component of organisms, and used widely for industrial and pharmaceutical purposes} |