周期性定义

periodic decimal───循环小数

periodical cicada───周期表

periodically───adv.定期地；周期性地；偶尔；间歇

aperiodically───adv.不定期地；无周期地

clinically dead───n.医学死亡，临床死亡

clinically deader───临床死亡

periodic acid───过碘酸；[无化]高碘酸

According to the updating granularity, two kinds of sliding window are defined: continuously updating sliding window and periodically updating sliding window.───根据滑动窗口的更新粒度定义了两类滑动窗口：连续更新滑动窗口和周期更新滑动窗口。

Our employees have well defined job responsibilities and their performance is appraised periodically.───我们的员工职责分明， 公司亦定期对他们的工作表现进行评估。