短語詞組短語negoing reflected pulse 負(fù)向反射脈沖going reflected pulse 負(fù)向反射脈沖once -reflected pulse 一次反射脈沖negative -going reflected pulse [電子]負(fù)向反射脈沖receiving probability of reflected pulse 表面回波接收概率the reflected pulse ultrasonic testing 超聲波脈沖反射法the method of reflected pulse 脈沖反射法 返回 reflected pulse