periodic

英 [ˌpɪəriˈɒdɪk]

美 [ˌpɪriˈɑːdɪk]

adj.  间发性的; 定期的; 周期的

CET6TOEFLTEM8医学

Collins.1 / BNC.7973 / COCA.7702

牛津词典

adj.

• 间发性的；定期的；周期的
  happening fairly often and regularly
  1. Periodic checks are carried out on the equipment.
     设备定期进行检查。

柯林斯词典

• ADJ 间发性的；定期的；周期的
  Periodicevents or situations happen occasionally, at fairly regular intervals.
  1. Periodic checks are taken to ensure that high standards are maintained.
     定期检查以确保维持高水准。
  2. ...periodic bouts of illness.
     周期性发病

英英释义

adj

• recurring or reappearing from time to time
  1. periodic feelings of anxiety
  Synonym:occasional
• happening or recurring at regular intervals
  1. the periodic appearance of the seventeen-year locust
  Synonym:periodical

双语例句

• By using the mean values of the periodic coefficients, the approximations of the unstable frequencies are obtained.
  用周期性系数的平均值法获得了不稳定频率的近似值。
• And now we can rationalize what is going on in the Periodic Table.
  现在我们能合理解释，元素周期表上的东西了。
• The RUP artifact Issues List is updated and maintained by project management on both a periodic and event-driven basis.
  项目的管理人员在定期的和事件驱动的基础上，更新和维护RUP中的工件问题列表（IssuesList）。
• Periodic checks are taken to ensure that high standards are maintained.
  定期检查以确保维持高水准。
• These arrangements are subject to periodic reviews.
  这几项安排每隔一定时间须予复查。
• The mathematicians turned to culling periodic solutions.
  数学家们转而去挑选周期解。
• A circuit that provides periodic signals to control and synchronize other circuits.
  一种提供周期性信号的电路，用于控制和同步其它电路。
• The cycles are periodic and optional.
  循环是阶段性和可选择的。
• The sum of a series of trigonometric expressions; used in the analysis of periodic functions.
  三角表达式级数之和，用在周期函数分析上。
• The separability of asymptotically strongly periodic function space and asymptotically periodic sequence space are also discussed.
  研究了渐近强周期函数空间、渐近周期序列空间的可分性质。