periodic
英 [ˌpɪəriˈɒdɪk]
美 [ˌpɪriˈɑːdɪk]
adj. 间发性的; 定期的; 周期的
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- Periodic checks are carried out on the equipment.
设备定期进行检查。
- Periodic checks are carried out on the equipment.
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.- Periodic checks are taken to ensure that high standards are maintained.
定期检查以确保维持高水准。 - ...periodic bouts of illness.
周期性发病
- Periodic checks are taken to ensure that high standards are maintained.
英英释义
adj
- recurring or reappearing from time to time
- periodic feelings of anxiety
- happening or recurring at regular intervals
- the periodic appearance of the seventeen-year locust
双语例句
- The mathematicians turned to culling periodic solutions.
数学家们转而去挑选周期解。 - 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。 - 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。 - 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。 - A energy iteration method for periodic solutions to second order strongly nonlinear non-autonomous systems is suggested.
给出了确定一般二阶强非线性非自治系统周期解的能量迭代方法。 - 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。 - 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。 - 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。 - 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。