- megurikami
- 回声: echo; bounce back; reverberation; resounding 空屋发出回声。 the empty room echoed. 回声消失了。 the echoes died [faded] away. 这个峡谷以回声而闻名。 the canyon is famous for producing echoes.; 回声测距法 echoranging; echo ranging; 回声测深 echo depth sounding; 回声测深仪 sonic depth finder; acoustic depth finder; echo depth sounding sonar; echo sounder; fathometer; 回声定位 echo location; echo ranging; 回声探鱼法 echo ranging; 回声探鱼仪 acoustic sounder; echo sounder; sonic echo sounder; 回声仪 echometer
- 回射装置: reflex reflexting device; retro0reflecting device
- 回声,回波(电): echo
- 回射炸弹: retro-bomb
- 回声-反射比: echo-reverberation ratio
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