| 释义 |
铯sè金属元素,符号Cs(caesium)。银白色,质软,化学性质极活泼,在光的作用下易放出电子,遇水发生爆炸。用于制光电池和真空管等。{caesium (Cs); silvery, soft metal element that has an active chemical property, releases electrons under light, explodes with water, and is used as a material for the making of photocells and vacuum tubes} |