英语词汇echo sounder是什么意思，echo sounder的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	echo sounder
释义	DEFINITIVE EXAMPLES 权威例句〔pinger〕A device used underwater to produce pulses of sound, as for an echo sounder.声脉冲发送器：置于水下产生声脉冲的装置，如回音器中的装置美国传统
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