periodic是什么意思？

periodic

英[ˌpɪəriˈɒdɪk] 美[ˌpɪriˈɑdɪk]

• adj. 周期的，定期的，回归的，间歇的，时而发生的；

副词：periodically;

例句

• periodic perturbations 周期摄动
• These arrangements are subject to periodic reviews. 这几项安排须定期检查。
• the characteristics of periodic and aperiodic tasks 周期任务和非周期任务的特点
• Keep air clean and fresh in the ward and conduct periodic sterilization. 病室内保持空气清新,定期消毒.
• The mathematicians turned to culling periodic solutions. 数学家们转而去挑选周期解.
• Periodic local catastrophes reduce populations. 周期性的局部地区的灾变降低了种群的数量.
• Apomixes is divided into three types, including sporadic, constant and periodic. 孤雌生殖有偶发性 、 经常性、周期性三种类型.
• Some commercial laboratories use periodic nitrate tests as guides. 许多商业性的试验室已应用定期的硝态氮分析作为指导.
• Long long ago, we knew the periodic motion of a planet. 很久以前, 我们就知道行星的周期运动.
• The microstrip log periodic antenna was discussed and analyzed. 讨论和分析微带对数周期天线.

柯林斯高阶英汉双解学习词典释义

• ADJ
  间发性的；定期的；周期的
  Periodic events or situations happen occasionally, at fairly regular intervals.
  例句
  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

英汉词典释义

• adj.
  周期的; 定期的, 定期发生的,间发性的
  Long long ago, we knew the periodic motion of a planet. 很久以前, 我们就知道行星的周期运动。

英英词典释义

• Adjective
  1. happening or recurring at regular intervals
  2. recurring at regular intervals
  3. recurring or reappearing from time to time;
  "periodic feelings of anxiety"

行业词典

• 医学： 周期性的：以规则的间隔时间反复的；