释义 |
ni·tro·gen AHD[nīʹtrə-jən] D.J.[ˈnaɪtrədʒən]K.K.[ˈnaɪtrədʒən]n.Symbol N (名词)符号 N - A nonmetallic element that constitutes nearly four fifths of the air by volume, occurring as a colorless, odorless, almost inert diatomic gas, N2, in various minerals and in all proteins and used in a wide variety of important manufactures, including ammonia, nitric acid, TNT, and fertilizers. Atomic number 7; atomic weight 14.0067; melting point -209.86°C; boiling point -195.8°C; valence 3, 5. See table at element 氮:一种非金属元素,按体积计算约占空气的五分之四,是一种无色、无味几乎为惰性的双原子气体,N2,存在于各种矿物和所有的蛋白质中,广泛地运用于各种重要的生产中包括生产氨酸、硝酸、黄色炸药以及化肥。原子序数7;原子量14.0067;熔点-209.86°C;沸点-195.8°C;化合价3,5 参见 element
- French nitrogène 法语 nitrogène
- nitro- [nitric acid] from New Latin * see nitro- nitro- [硝酸] 源自 新拉丁语 * 参见 nitro-
- -gène [-gen] -gène [生,被生]
nitrogʹenous AHD[nī-trŏjʹə-nəs] (形容词) |