单频脉冲 meaning in Chinese

pure tone polse
pure-tone pulse

Inband pulsing single frequency line signaling system for telephone automatic switching network
电话自动交换网带内单频脉冲线路信号方式
The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network
电话自动交换网带内单频脉冲线路信号技术指标测试方法
( 2 ) based on pci , finish plan of the project , hardware design and debugging of wide signal source of radar . the system can produce single , lfm and other arbitrary waveform
( 2 )完成了基于pci总线的任意波形信号源的方案设计、硬件设计与调试,该系统可产生单频脉冲?线性调频信号、三角波等任意波形信号。