将“incumbency"翻译成中文

In addition to the duration of the presidency, we also need to take into account the incumbents.

除了主席任期,我们还需要考虑到主席人选。

The actual average vacancy rate is calculated based on the planned phased deployment and incumbency period, which varies between categories of personnel.

实际平均空缺率是依据已规划的分阶段部署和在职期间计算,这个期间在不同类别人员之间各异。