短語詞組短語beta decay spectrum 衰變譜continuous beta ray spectrum 連續(xù)射線譜beta ray spectrum 射線譜beta rays spectrum 貝他線光譜beta -ray spectrum 貝他射線譜gamma coincident beta spectrum 與符合的譜gross beta spectrum 總貝他能譜gamma a coincident beta spectrum 與符合的譜gamma -coincidence beta spectrum 加馬符合貝他譜 返回 beta spectrum