structural deterioration

There were 9 cases of deaths. The deaths were associated with PVE, TE, heart failure and structural valve deterioration except one. The late mortality rate was 3.69% patient years.

晚期死亡9例，其中置换瓣膜心内膜炎（PVE）5例，血栓栓塞（TE）、瓣膜毁损、心衰、原因不明各1例，死亡率3.69%病人年。

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The deterioration of structural behavior can be studied using accelerated aging method in a short period.

通过采用人工气候环境加速锈蚀方法,研究了锈蚀钢筋混凝土梁的承载力、延性及其结构性能退化机理.

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