[=reaction half-time]反应半衰期
[=symbol for half life(time)]
放射性同位素半衰期t的符号
[=symbol for half-life of radioactive isotope]
放射性同位的半衰期符号t1/2、t1/2
[=terminal half-life]终末半衰期
[=time in months for antibody levels to decrease by 50%]
抗体降低50%的月数
[=time taken for 1/2 of the initial concentration of dna to renature]dna最初浓度的1/2进入
复性所需时间