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

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。
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 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。
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 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。
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。
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。
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 accounting recording procedures are different under the periodic inventory system and the perpetual inventory system.
定期盘存制和永续盘存制的会计入账程序是不同的。
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。