periodic

周期的；一定时期的英释adjadjhappening a number of times, usually at regular times

1 periodic table,周期表

2 periodic structure,周期性结构；周期组织

3 periodic wave,周期波

4 periodic inspection,定期检修

5 periodic maintenance,定期维修；定期保养

6 periodic change,周期变化；周期变更

7 periodic law,[化]周期律；门捷列夫氏定律

8 periodic function,周期函数

9 periodic motion,周期运动

10 periodic review,定期检查；按期盘点

11 periodic system,周期系，周期系统

12 periodic acid,过碘酸；高碘酸

13 periodic table of elements,元素周期表

14 periodic error,周期误差；周期性误差

15 periodic time,[计]周期，周期时间

16 periodic inventory,定期盘存

17 periodic cleaning,定期清理，定期清洗

18 periodic report,定期报告

1 periodic home visits by nurses.护士的定期上门探访

2 Periodic checks are taken to ensure that high standards are maintained..进行周期性检查以确保高标准得以维持。