不定期地

Good articles recommendation and appraisal aperiodically. 不定期推薦和評論好的英文精品文章。

Open classes: New type of class brought by the teachers aperiodically. 代表公開課程：不定期由新教練為大家展示最新課程。

A residency is aperiod of hospital training for medical school graduates. 一段實(shí)習(xí)期是指允許醫(yī)學(xué)研究生在醫(yī)院培訓(xùn)實(shí)習(xí)的時間。

Aperiodically audit the suppliers' HSE implement situations and push them to give the improvements. 不定期地對供應(yīng)商的HSE進(jìn)行稽核并要求做出改善措施.

Set up and perfect users" records, and track, visit vehicle plant and customers periodically or aperiodically. 建立健全用戶檔案，緊密跟蹤，定期或不定期回訪整車廠和客戶。