periodicallyadv.周期性地;定期地
periodicaln.期刊adj.定期的
Periodical of science and technology科技期刊
periodically variable load condition周期性变负载工况
periodicals of science and technilogy科技期刊
periodicals of science and technology科技学术期刊
periodical of the vocational students职校生期刊
periodical reading room of university高校期刊阅览室
periodical eye inflamation of equines马周期性眼炎
periodical examination and repairment周期性检修
periodical publications of automation自动化期刊
periodically accumulated over time.随着时间的过去定期性的积聚。