echo-sounding receiver
echo-sounding receiver
[新英汉石油技术词典]
echo-sounding receiver回声测深接收机
是什么意思,echo-sounding receiver的解释,echo-sounding receiver的翻译
echo-sounding receiver
[新英汉石油技术词典]
echo-sounding receiver是什么意思,echo-sounding receiver的解释,echo-sounding receiver的翻译