生存函数生存函数 生存函数（Survival Function） ，也可称为累积生存率（Cumulative Survival Rate） ，记为 S(t)，是样本数据的生存时间 T 大于 t 的概率，即 S(t)=P(T＞t)，表示考察对象在度过 t 时点后仍然存活的可能性。
双语例句
1
Cumulativesurvivalrate was 87.5% for the prostheses and 100% for implants.
磁性附着体的存留率为87.5%，种植体的存留率为100%。
2
Cox regression was used to screen out single and multiple risk factors. Cumulativesurvivalrate was calculated by life table and Gehan score test.
单因素生存分析用寿命表法计算，以生存曲线描述生存率，并进行Gehan比分检验。
3
The challenge, says Duke's Van Dover, “is to ensure that cumulative effects of mining activities do not exceed the rate of recovery of the organisms that rely on these habitats for survival.