periodic

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

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。

periodic table,周期表

periodic structure,周期性结构；周期组织

periodic wave,周期波

periodic inspection,定期检修

periodic maintenance,定期维修；定期保养

periodic change,周期变化；周期变更

periodic law,[化]周期律；门捷列夫氏定律

periodic function,周期函数

periodic motion,周期运动

periodic review,定期检查；按期盘点

periodic system,周期系，周期系统

periodic acid,过碘酸；高碘酸

periodic table of elements,元素周期表

periodic error,周期误差；周期性误差

periodic time,[计]周期，周期时间

periodic inventory,定期盘存

periodic cleaning,定期清理，定期清洗

periodic report,定期报告