phos.pho.rus
n.(名词)Symbol P A highly reactive, poisonous, nonmetallic element occurring naturally in phosphates, especially apatite, and existing in three allotropic forms, white (or sometimes yellow), red, and black. An essential constituent of protoplasm, it is used in safety matches, pyrotechnics, incendiary shells, and fertilizers and to protect metal surfaces from corrosion. Atomic number 5; atomic weight 30.9738; melting point (white) 44.=C; boiling point 280=C; specific gravity (white) .82; valence 3, 5.See table at element 符号 P 磷:一种易起化学反应的、有毒的非金属元素,常在磷酸盐中天然存在,尤其是磷灰石,以三种同素异形的形式存在,为白色(有时是黄色),红色和黑色,是原生质的基本成分,可用于安全火柴、烟花、燃烧弹和化肥,还可以保护金属表面免于腐蚀。原子序数为5;原子量30.9738;熔点(白色的)为44.=C;沸点为280=C;比重(白色的).82;化合价3,5参见 elementA phosphorescent substance.磷光体:一种发磷光的物质
来源:Latin Phôsphorus [morning star] 拉丁语 Phôsphorus [启明星] from Greek [bringing light, morning star] 源自 希腊语 [带来光亮,启明星] phôs [light] * see bh3- phôs [光] *参见 bh3- -phoros [-phorous] -phoros [表示.负荷…的;运载…的.]