pinger

英 ['pɪŋə(r)] 美 ['pɪŋər]

• n. 研初海流用声脉冲发送器(声波发射器)

英英释义

Noun:

1. a pulse generator used for echo sounding in sonar

经典引文

• Two eggs..boiled for two minutes...The pinger pinged.

  出自： P. Dickinson