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1·Result There were no significant differences between cemented and cementless THR as regards to clinical outcomes, possible survivorship curve and the severity of osteolysis.

结果两组病人术后疗效及假体可能生存率，股骨近端广泛骨溶解无显著差异。

2·The time specific life table, survivorship curve and age structure of Cathaya argyrophylla population were obtained through analysing the demography and age structures of its main coenopopulations.

通过对银杉主要群落种群的数量统计和年龄组成的分析，编绘了银杉种群的特定时间生命表、存活曲线和年龄结构图。