无载频脉冲探地雷达
Carrier-free ground penetrating radar
脉冲调频载波
pulsed frequency-modulated carrier
变频脉冲信号产生器
frequency pulse signal generator
步进频脉冲信号
stepping frequency pulse signal
超低频脉冲梯度磁场
ultralow frequency pulsed gradient magnetic field
超声频脉冲电弧
ultrasonic frequency pulsed are
ultrasonic frequency pulsed arc
超音频脉冲TIG焊
ultra-sonic pulse TIG welding
程控低频脉冲治疗仪
program control low frequency pulse treatment