periodic
periodic 英 [ˌpɪəriˈɒdɪk] 美 [ˌpɪriˈɑdɪk]
adj. 周期的；定期的
Periodic checks are carried out on the equipment. 设备定期进行检查。
Mailing lists are updated periodically. 邮寄名单定期更新。
- Something periodic happens only occasionally, after a "period" of time. Lunch happens every day, after 4th period, so it's safe to say it's periodic. Something periodic doesn't have to happen at regular intervals, though.
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- adj. 周期的；定期的
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1. Periodic checks are carried out on the equipment.
设备定期进行检查。
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2. Mailing lists are updated periodically.
邮寄名单定期更新。
- periodic (adj.) 1640s, from French périodique (14c.), from Latin periodicus, from periodus (see period).
peri·od·ic AWL / ˌpɪəriˈɒdɪk ; NAmE ˌpɪriˈɑːdɪk / ( also less frequent peri·od·ical / ˌpɪəriˈɒdɪkl ; NAmE ˌpɪriˈɑːdɪkl / ) adjective [usually before noun ] happening fairly often and regularly 间发性的；定期的；周期的 ◆ Periodic checks are carried out on the equipment. 设备定期进行检查。 ▶ peri·od·ic·al·ly AWL / ˌpɪəriˈɒdɪkli ; NAmE ˌpɪriˈɑːdɪkli / adverb ◆ Mailing lists are updated periodically. 邮寄名单定期更新。 peri·od·ic / ˌpɪəriˈɒdɪk ; NAmE ˌpɪriˈɑːdɪk / peri·od·ical / ˌpɪəriˈɒdɪkl ; NAmE ˌpɪriˈɑːdɪkl / peri·od·ic·al·ly / ˌpɪəriˈɒdɪkli ; NAmE ˌpɪriˈɑːdɪkli /
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