释义 |
〔lithium〕A soft, silvery, highly reactive metallic element that is used as a heat transfer medium, in thermonuclear weapons, and in various alloys, ceramics, and optical forms of glass. Atomic number 3; atomic weight 6.939; melting point 179°C; boiling point 1,317°C; specific gravity 0.534; valence 1. See table at element 锂:一种柔软、银色、极易反应的金属元素,作为导热体用于热核子武器、及各种合金,陶器,和玻璃的光学构造。原子序数3;原子量6.939;熔点179°C;沸点1,317°C;比重0.534;化合价1 参见 element |