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

• 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。
• This system is intended to supplement the on-crank system by increasing the time intervals between periodic on-crank cleaning.
  此系统旨在通过增加定期曲柄上清洁之间的时间间隔对曲柄面系统进行补充。
• 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。
• In chapter five, we calculate the conductance of two typical open periodic structures.
  在第五章中，我们计算了两种典型的开放周期型结构的电导。
• Periodic checks are taken to ensure that high standards are maintained.
  定期检查以确保维持高水准。
• 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 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。
• 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。
• This figure demonstrates periodic task scheduling.
  本图演示了周期性任务调度。