n a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
n a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes
abbr. 货物财务结算系统（Cargo Account Settlement System）；指令主动声纳浮标系统（Commanded Active Sonobuoy System）