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。
• The time periodic solution problem of damped generalized coupled nonlinear wave equations with periodic boundary condition was studied.
  本文研究了半线性波动方程在非线性项和初值满足一定条件下解的存在性。
• Analysis of a periodic function into a sum of simple sinusoidal components.
  周期函数解成简单正弦曲线之和的分析。
• 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。
• And discuss the properties of high order arithmetical infinite matrix and periodic infinite matrix.
  给出了数阵的加法、数乘和乘法定义，并给出高阶等差数阵和周期数阵的运算性质。
• A mechanical model of two-degree-of-freedom system with clearance was established, whose periodic motion and disturbed motion were studied.
  建立了一类两自由度含间隙系统的力学模型，并研究了该系统的周期运动及运动的受扰运动。
• The mathematicians turned to culling periodic solutions.
  数学家们转而去挑选周期解。
• 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。
• This paper studies the existence of periodic solutions for some non-autonomous second order systems.
  研究一类非自治二阶系统周期解的存在性问题。