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
- 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。 - 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。 - Periodic checks are taken to ensure that high standards are maintained.
定期检查以确保维持高水准。 - 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。 - And now we can rationalize what is going on in the Periodic Table.
现在我们能合理解释，元素周期表上的东西了。 - The mathematicians turned to culling periodic solutions.
数学家们转而去挑选周期解。 - 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。 - And quasi-periodic and chaotic motion can bifurcate from periodic motion when parameters of the system are changed.
而在系统参数变化时，又由周期分叉形成了准周期和混沌。 - 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。