脉波期间 pulse duration

声脉波期间 ping duration

脉波波期调变遥测 telemetering pulse duration modulation

周期性脉波连列 periodic pulse train

读值、脉波周期循环 Pulse Duty Cycle

非周期性脉波列 aperiodic pulse train

单周期脉冲波形 monocycle pulse waveform