half-life effective 有效半化期
effective half-life [特医] 有效半衰期 ; 有效半减期 ; 有效半生期 ; 有效半化期
effective half life 有效半排出期 ; 有效半衰期
remaining effective life 剩余有效开采期
ship's effective life 船舶有效使用期限
effective service life 有效使用期
effective life time 有效寿期
effective half-life period 有效半衰期
effective life-time 有效寿期
short effective half-life 短的有效半衰期
Life expectancy rates climbed, because doctors and scientists developed effective ways to prevent or treat diseases such as tuberculosis, typhoid,diphtheria,and influenza.
VOA: special.2010.12.02
Dr.Priego says so far the combination has been effective in prolonging life for patients with pancratic cancer.
VOA: standard.2010.01.12
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