由于大雨,伊利湖水正在上涨.Lake Erie is filling with the heavy rain.1970年工业废物污染了克利夫兰附近的伊利湖湖面.Industrial waste burned on the surface of Lake Erie near Cleveland in 1970.共有五个大湖泊: 苏必利尔湖, 密歇根湖, 休伦湖, 伊利湖和安大略湖.There are five lakes: Superio...
夸克和轻子的这些个同种类,从技术上看是有特色的.The different kinds of quarks or leptons are known technically as flavors.在反μ子衰变中,总轻轻子数和总重轻子数也是守恒的.The antimuon decay also conserves the total light and heavy lepton numbers.轻子探针不会遇到这一困难.Leptonic ...