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

• We study the property of complex periodic function, and obtain some correlation results.
  对复周期函数的性质进行了一些研究，得到了若干有关的结果。
• 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 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 cycles are periodic and optional.
  循环是阶段性和可选择的。
• In periodic systems, the time interval between two corresponding points on successive cycles.
  周期系统中，在相继两循环中两个对应点之间的时间间隔。参阅frequency。
• Atomic structure and the periodic table.
  原子结构和元素周期表。
• There may be periodic police 'sweeps' of crime in the area.
  警方可能对该地区的犯罪活动进行定时的“扫荡”。
• 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）。
• By using properties of scalar almost periodic function, properties of uniform almost periodic matrix function are discussed.
  利用纯量概周期函数性质讨论了一致概周期矩阵函数的一些性质。
• The periodic initial value problem of a class of generalized symmetric regularized long wave equations is considered.
  考虑了一类广义的对称正则长波方程的周期初值问题。