periodicles期刊periodicadj.周期的；定期的；间歇的；完句的periodic distributed周期性分布periodic measurement定期测量periodic calibration定期校准Periodic chirp pulse周期性啁啾脉冲periodic deformation周期性畸变periodic short pulse周期性窄脉冲, 周期性短脉冲periodic revaluation定期调整币值periodic test signal周期试验信号periodic time series周期时间序列periodicity solution周期解