periodic

英 [ˌpɪəriˈɒdɪk]

美 [ˌpɪriˈɑːdɪk]

adj. 间发性的; 定期的; 周期的

CET6 TOEFL TEM8 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 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。
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”。
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 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 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 periodicity of positron annihilation parameter is related to periodic change of lattic distortion and crystal defect.
正电子湮没参数的周期性，与点阵畸变和晶体缺陷的周期性变化有关。
Atomic structure and the periodic table.
原子结构和元素周期表。
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。
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。