periodicallyadv.周期性地;定期地
periodicaln.期刊adj.定期的
Periodicals in Foreign Languages西文期刊
periodicals of foreign literature外国文学期刊
periodical editing and publishing期刊编辑出版
periodical recourses construction期刊资源建设
periodical multi-scale analysis周期多尺度分析
periodical dynamic changes of air压力脉动
periodical on forestry technology林业科技期刊
periodicals of educational theory教育理论期刊