electron beta-decay贝他衰变电子
Beta minus decay衰变
beta-decay chemistry衰变化学
double beta-decay双β衰变
beta-decay衰变
sigma beta-decay event介子β衰变事件
dual beta decay双贝他衰变
forbidden n beta decay禁戒衰变
neutrinoless double beta decay无中微子双β衰变
N（名词） the radioactive transformation of an atomic nucleus accompanying the emission of an electron. It involves unit change of atomic number but none in mass number β衰变 (Also called beta transformation, beta process)