| 释义 |
钠nà金属元素,符号Na(natrium)。银白色,质软,有延展性,化学性质极活泼,容易氧化,燃烧时发出黄色光。在工业上用途很广。{natrium(Na); silvery-white metal element that is soft and malleable, and easily oxidized because of its volatile chemical property, emitting a yellow light when burning, used extensively in industry} |